mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
2683 lines
86 KiB
C
2683 lines
86 KiB
C
/*
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* utils for libavcodec
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* Copyright (c) 2001 Fabrice Bellard
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* utils.
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*/
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/channel_layout.h"
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#include "libavutil/crc.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/samplefmt.h"
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#include "libavutil/dict.h"
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#include "libavutil/avassert.h"
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#include "avcodec.h"
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#include "dsputil.h"
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#include "libavutil/opt.h"
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#include "thread.h"
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#include "frame_thread_encoder.h"
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#include "internal.h"
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#include "bytestream.h"
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#include <stdlib.h>
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#include <stdarg.h>
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#include <limits.h>
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#include <float.h>
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volatile int ff_avcodec_locked;
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static int volatile entangled_thread_counter = 0;
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static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op);
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static void *codec_mutex;
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static void *avformat_mutex;
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void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
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{
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if (min_size < *size)
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return ptr;
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min_size = FFMAX(17 * min_size / 16 + 32, min_size);
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ptr = av_realloc(ptr, min_size);
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/* we could set this to the unmodified min_size but this is safer
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* if the user lost the ptr and uses NULL now
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*/
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if (!ptr)
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min_size = 0;
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*size = min_size;
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return ptr;
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}
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static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
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{
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void **p = ptr;
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if (min_size < *size)
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return 0;
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min_size = FFMAX(17 * min_size / 16 + 32, min_size);
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av_free(*p);
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*p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
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if (!*p)
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min_size = 0;
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*size = min_size;
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return 1;
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}
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void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
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{
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ff_fast_malloc(ptr, size, min_size, 0);
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}
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void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
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{
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uint8_t **p = ptr;
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if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
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av_freep(p);
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*size = 0;
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return;
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}
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if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
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memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
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}
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void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
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{
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uint8_t **p = ptr;
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if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
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av_freep(p);
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*size = 0;
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return;
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}
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if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1))
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memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
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}
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/* encoder management */
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static AVCodec *first_avcodec = NULL;
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AVCodec *av_codec_next(const AVCodec *c)
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{
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if (c)
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return c->next;
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else
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return first_avcodec;
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}
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static void avcodec_init(void)
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{
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static int initialized = 0;
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if (initialized != 0)
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return;
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initialized = 1;
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ff_dsputil_static_init();
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}
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int av_codec_is_encoder(const AVCodec *codec)
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{
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return codec && (codec->encode_sub || codec->encode2);
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}
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int av_codec_is_decoder(const AVCodec *codec)
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{
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return codec && codec->decode;
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}
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void avcodec_register(AVCodec *codec)
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{
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AVCodec **p;
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avcodec_init();
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p = &first_avcodec;
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while (*p != NULL)
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p = &(*p)->next;
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*p = codec;
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codec->next = NULL;
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if (codec->init_static_data)
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codec->init_static_data(codec);
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}
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unsigned avcodec_get_edge_width(void)
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{
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return EDGE_WIDTH;
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}
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void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
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{
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s->coded_width = width;
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s->coded_height = height;
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s->width = -((-width ) >> s->lowres);
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s->height = -((-height) >> s->lowres);
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}
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#define INTERNAL_BUFFER_SIZE (32 + 1)
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void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
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int linesize_align[AV_NUM_DATA_POINTERS])
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{
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int i;
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int w_align = 1;
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int h_align = 1;
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switch (s->pix_fmt) {
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case AV_PIX_FMT_YUV420P:
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case AV_PIX_FMT_YUYV422:
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case AV_PIX_FMT_UYVY422:
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case AV_PIX_FMT_YUV422P:
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case AV_PIX_FMT_YUV440P:
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case AV_PIX_FMT_YUV444P:
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case AV_PIX_FMT_GBRP:
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case AV_PIX_FMT_GRAY8:
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case AV_PIX_FMT_GRAY16BE:
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case AV_PIX_FMT_GRAY16LE:
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case AV_PIX_FMT_YUVJ420P:
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case AV_PIX_FMT_YUVJ422P:
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case AV_PIX_FMT_YUVJ440P:
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case AV_PIX_FMT_YUVJ444P:
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case AV_PIX_FMT_YUVA420P:
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case AV_PIX_FMT_YUVA422P:
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case AV_PIX_FMT_YUVA444P:
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case AV_PIX_FMT_YUV420P9LE:
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case AV_PIX_FMT_YUV420P9BE:
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case AV_PIX_FMT_YUV420P10LE:
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case AV_PIX_FMT_YUV420P10BE:
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case AV_PIX_FMT_YUV420P12LE:
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case AV_PIX_FMT_YUV420P12BE:
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case AV_PIX_FMT_YUV420P14LE:
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case AV_PIX_FMT_YUV420P14BE:
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case AV_PIX_FMT_YUV422P9LE:
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case AV_PIX_FMT_YUV422P9BE:
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case AV_PIX_FMT_YUV422P10LE:
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case AV_PIX_FMT_YUV422P10BE:
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case AV_PIX_FMT_YUV422P12LE:
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case AV_PIX_FMT_YUV422P12BE:
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case AV_PIX_FMT_YUV422P14LE:
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case AV_PIX_FMT_YUV422P14BE:
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case AV_PIX_FMT_YUV444P9LE:
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case AV_PIX_FMT_YUV444P9BE:
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case AV_PIX_FMT_YUV444P10LE:
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case AV_PIX_FMT_YUV444P10BE:
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case AV_PIX_FMT_YUV444P12LE:
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case AV_PIX_FMT_YUV444P12BE:
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case AV_PIX_FMT_YUV444P14LE:
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case AV_PIX_FMT_YUV444P14BE:
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case AV_PIX_FMT_GBRP9LE:
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case AV_PIX_FMT_GBRP9BE:
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case AV_PIX_FMT_GBRP10LE:
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case AV_PIX_FMT_GBRP10BE:
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case AV_PIX_FMT_GBRP12LE:
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case AV_PIX_FMT_GBRP12BE:
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case AV_PIX_FMT_GBRP14LE:
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case AV_PIX_FMT_GBRP14BE:
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w_align = 16; //FIXME assume 16 pixel per macroblock
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h_align = 16 * 2; // interlaced needs 2 macroblocks height
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break;
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case AV_PIX_FMT_YUV411P:
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case AV_PIX_FMT_UYYVYY411:
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w_align = 32;
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h_align = 8;
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break;
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case AV_PIX_FMT_YUV410P:
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if (s->codec_id == AV_CODEC_ID_SVQ1) {
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w_align = 64;
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h_align = 64;
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}
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break;
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case AV_PIX_FMT_RGB555:
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if (s->codec_id == AV_CODEC_ID_RPZA) {
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w_align = 4;
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h_align = 4;
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}
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break;
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case AV_PIX_FMT_PAL8:
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case AV_PIX_FMT_BGR8:
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case AV_PIX_FMT_RGB8:
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if (s->codec_id == AV_CODEC_ID_SMC) {
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w_align = 4;
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h_align = 4;
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}
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break;
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case AV_PIX_FMT_BGR24:
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if ((s->codec_id == AV_CODEC_ID_MSZH) ||
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(s->codec_id == AV_CODEC_ID_ZLIB)) {
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w_align = 4;
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h_align = 4;
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}
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break;
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default:
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w_align = 1;
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h_align = 1;
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break;
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}
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if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) {
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w_align = FFMAX(w_align, 8);
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}
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*width = FFALIGN(*width, w_align);
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*height = FFALIGN(*height, h_align);
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if (s->codec_id == AV_CODEC_ID_H264 || s->lowres)
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// some of the optimized chroma MC reads one line too much
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// which is also done in mpeg decoders with lowres > 0
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*height += 2;
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for (i = 0; i < 4; i++)
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linesize_align[i] = STRIDE_ALIGN;
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}
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void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
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int chroma_shift = desc->log2_chroma_w;
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int linesize_align[AV_NUM_DATA_POINTERS];
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int align;
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avcodec_align_dimensions2(s, width, height, linesize_align);
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align = FFMAX(linesize_align[0], linesize_align[3]);
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linesize_align[1] <<= chroma_shift;
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linesize_align[2] <<= chroma_shift;
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align = FFMAX3(align, linesize_align[1], linesize_align[2]);
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*width = FFALIGN(*width, align);
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}
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int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
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enum AVSampleFormat sample_fmt, const uint8_t *buf,
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int buf_size, int align)
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{
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int ch, planar, needed_size, ret = 0;
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needed_size = av_samples_get_buffer_size(NULL, nb_channels,
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frame->nb_samples, sample_fmt,
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align);
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if (buf_size < needed_size)
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return AVERROR(EINVAL);
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planar = av_sample_fmt_is_planar(sample_fmt);
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if (planar && nb_channels > AV_NUM_DATA_POINTERS) {
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if (!(frame->extended_data = av_mallocz(nb_channels *
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sizeof(*frame->extended_data))))
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return AVERROR(ENOMEM);
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} else {
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frame->extended_data = frame->data;
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}
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if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0],
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(uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples,
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sample_fmt, align)) < 0) {
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if (frame->extended_data != frame->data)
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av_freep(&frame->extended_data);
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return ret;
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}
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if (frame->extended_data != frame->data) {
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for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++)
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frame->data[ch] = frame->extended_data[ch];
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}
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return ret;
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}
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static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
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{
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AVCodecInternal *avci = avctx->internal;
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int buf_size, ret;
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av_freep(&avci->audio_data);
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buf_size = av_samples_get_buffer_size(NULL, avctx->channels,
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frame->nb_samples, avctx->sample_fmt,
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0);
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if (buf_size < 0)
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return AVERROR(EINVAL);
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frame->data[0] = av_mallocz(buf_size);
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if (!frame->data[0])
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return AVERROR(ENOMEM);
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ret = avcodec_fill_audio_frame(frame, avctx->channels, avctx->sample_fmt,
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frame->data[0], buf_size, 0);
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if (ret < 0) {
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av_freep(&frame->data[0]);
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return ret;
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}
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avci->audio_data = frame->data[0];
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if (avctx->debug & FF_DEBUG_BUFFERS)
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av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p, "
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"internal audio buffer used\n", frame);
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return 0;
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}
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static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
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{
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int i;
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int w = s->width;
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int h = s->height;
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InternalBuffer *buf;
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AVCodecInternal *avci = s->internal;
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if (pic->data[0] != NULL) {
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av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
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return -1;
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}
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if (avci->buffer_count >= INTERNAL_BUFFER_SIZE) {
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av_log(s, AV_LOG_ERROR, "buffer_count overflow (missing release_buffer?)\n");
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return -1;
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}
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if (av_image_check_size(w, h, 0, s) || s->pix_fmt<0) {
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av_log(s, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
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return -1;
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}
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if (!avci->buffer) {
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avci->buffer = av_mallocz((INTERNAL_BUFFER_SIZE + 1) *
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sizeof(InternalBuffer));
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}
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buf = &avci->buffer[avci->buffer_count];
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if (buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)) {
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for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
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av_freep(&buf->base[i]);
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buf->data[i] = NULL;
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}
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}
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if (!buf->base[0]) {
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int h_chroma_shift, v_chroma_shift;
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int size[4] = { 0 };
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int tmpsize;
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int unaligned;
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AVPicture picture;
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int stride_align[AV_NUM_DATA_POINTERS];
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt);
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const int pixel_size = desc->comp[0].step_minus1 + 1;
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av_pix_fmt_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift,
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&v_chroma_shift);
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avcodec_align_dimensions2(s, &w, &h, stride_align);
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if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
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w += EDGE_WIDTH * 2;
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h += EDGE_WIDTH * 2;
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}
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do {
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// NOTE: do not align linesizes individually, this breaks e.g. assumptions
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// that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
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av_image_fill_linesizes(picture.linesize, s->pix_fmt, w);
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// increase alignment of w for next try (rhs gives the lowest bit set in w)
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w += w & ~(w - 1);
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unaligned = 0;
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for (i = 0; i < 4; i++)
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unaligned |= picture.linesize[i] % stride_align[i];
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} while (unaligned);
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tmpsize = av_image_fill_pointers(picture.data, s->pix_fmt, h, NULL, picture.linesize);
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if (tmpsize < 0)
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return -1;
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for (i = 0; i < 3 && picture.data[i + 1]; i++)
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size[i] = picture.data[i + 1] - picture.data[i];
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size[i] = tmpsize - (picture.data[i] - picture.data[0]);
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memset(buf->base, 0, sizeof(buf->base));
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memset(buf->data, 0, sizeof(buf->data));
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for (i = 0; i < 4 && size[i]; i++) {
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const int h_shift = i == 0 ? 0 : h_chroma_shift;
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const int v_shift = i == 0 ? 0 : v_chroma_shift;
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buf->linesize[i] = picture.linesize[i];
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buf->base[i] = av_malloc(size[i] + 16); //FIXME 16
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if (buf->base[i] == NULL)
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return AVERROR(ENOMEM);
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memset(buf->base[i], 128, size[i]);
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// no edge if EDGE EMU or not planar YUV
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if ((s->flags & CODEC_FLAG_EMU_EDGE) || !size[2])
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buf->data[i] = buf->base[i];
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else
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buf->data[i] = buf->base[i] + FFALIGN((buf->linesize[i] * EDGE_WIDTH >> v_shift) + (pixel_size * EDGE_WIDTH >> h_shift), stride_align[i]);
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}
|
|
for (; i < AV_NUM_DATA_POINTERS; i++) {
|
|
buf->base[i] = buf->data[i] = NULL;
|
|
buf->linesize[i] = 0;
|
|
}
|
|
if (size[1] && !size[2])
|
|
avpriv_set_systematic_pal2((uint32_t *)buf->data[1], s->pix_fmt);
|
|
buf->width = s->width;
|
|
buf->height = s->height;
|
|
buf->pix_fmt = s->pix_fmt;
|
|
}
|
|
|
|
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
|
|
pic->base[i] = buf->base[i];
|
|
pic->data[i] = buf->data[i];
|
|
pic->linesize[i] = buf->linesize[i];
|
|
}
|
|
pic->extended_data = pic->data;
|
|
avci->buffer_count++;
|
|
|
|
if (s->debug & FF_DEBUG_BUFFERS)
|
|
av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d "
|
|
"buffers used\n", pic, avci->buffer_count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
frame->type = FF_BUFFER_TYPE_INTERNAL;
|
|
switch (avctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
return video_get_buffer(avctx, frame);
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
return audio_get_buffer(avctx, frame);
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
void ff_init_buffer_info(AVCodecContext *s, AVFrame *frame)
|
|
{
|
|
if (s->pkt) {
|
|
frame->pkt_pts = s->pkt->pts;
|
|
frame->pkt_pos = s->pkt->pos;
|
|
frame->pkt_duration = s->pkt->duration;
|
|
frame->pkt_size = s->pkt->size;
|
|
} else {
|
|
frame->pkt_pts = AV_NOPTS_VALUE;
|
|
frame->pkt_pos = -1;
|
|
frame->pkt_duration = 0;
|
|
frame->pkt_size = -1;
|
|
}
|
|
frame->reordered_opaque = s->reordered_opaque;
|
|
|
|
switch (s->codec->type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
frame->width = s->width;
|
|
frame->height = s->height;
|
|
frame->format = s->pix_fmt;
|
|
frame->sample_aspect_ratio = s->sample_aspect_ratio;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
frame->sample_rate = s->sample_rate;
|
|
frame->format = s->sample_fmt;
|
|
frame->channel_layout = s->channel_layout;
|
|
frame->channels = s->channels;
|
|
break;
|
|
}
|
|
}
|
|
|
|
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
ff_init_buffer_info(avctx, frame);
|
|
|
|
return avctx->get_buffer(avctx, frame);
|
|
}
|
|
|
|
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic)
|
|
{
|
|
int i;
|
|
InternalBuffer *buf, *last;
|
|
AVCodecInternal *avci = s->internal;
|
|
|
|
av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
|
|
|
|
assert(pic->type == FF_BUFFER_TYPE_INTERNAL);
|
|
assert(avci->buffer_count);
|
|
|
|
if (avci->buffer) {
|
|
buf = NULL; /* avoids warning */
|
|
for (i = 0; i < avci->buffer_count; i++) { //just 3-5 checks so is not worth to optimize
|
|
buf = &avci->buffer[i];
|
|
if (buf->data[0] == pic->data[0])
|
|
break;
|
|
}
|
|
av_assert0(i < avci->buffer_count);
|
|
avci->buffer_count--;
|
|
last = &avci->buffer[avci->buffer_count];
|
|
|
|
if (buf != last)
|
|
FFSWAP(InternalBuffer, *buf, *last);
|
|
}
|
|
|
|
for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
|
|
pic->data[i] = NULL;
|
|
// pic->base[i]=NULL;
|
|
|
|
if (s->debug & FF_DEBUG_BUFFERS)
|
|
av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d "
|
|
"buffers used\n", pic, avci->buffer_count);
|
|
}
|
|
|
|
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic)
|
|
{
|
|
AVFrame temp_pic;
|
|
int i, ret;
|
|
|
|
av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO);
|
|
|
|
if (pic->data[0] && (pic->width != s->width || pic->height != s->height || pic->format != s->pix_fmt)) {
|
|
av_log(s, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
|
|
pic->width, pic->height, av_get_pix_fmt_name(pic->format), s->width, s->height, av_get_pix_fmt_name(s->pix_fmt));
|
|
s->release_buffer(s, pic);
|
|
}
|
|
|
|
ff_init_buffer_info(s, pic);
|
|
|
|
/* If no picture return a new buffer */
|
|
if (pic->data[0] == NULL) {
|
|
/* We will copy from buffer, so must be readable */
|
|
pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
|
|
return ff_get_buffer(s, pic);
|
|
}
|
|
|
|
assert(s->pix_fmt == pic->format);
|
|
|
|
/* If internal buffer type return the same buffer */
|
|
if (pic->type == FF_BUFFER_TYPE_INTERNAL) {
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Not internal type and reget_buffer not overridden, emulate cr buffer
|
|
*/
|
|
temp_pic = *pic;
|
|
for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
|
|
pic->data[i] = pic->base[i] = NULL;
|
|
pic->opaque = NULL;
|
|
/* Allocate new frame */
|
|
if ((ret = ff_get_buffer(s, pic)))
|
|
return ret;
|
|
/* Copy image data from old buffer to new buffer */
|
|
av_picture_copy((AVPicture *)pic, (AVPicture *)&temp_pic, s->pix_fmt, s->width,
|
|
s->height);
|
|
s->release_buffer(s, &temp_pic); // Release old frame
|
|
return 0;
|
|
}
|
|
|
|
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
int r = func(c, (char *)arg + i * size);
|
|
if (ret)
|
|
ret[i] = r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
int r = func(c, arg, i, 0);
|
|
if (ret)
|
|
ret[i] = r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
|
|
{
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
|
|
return desc->flags & PIX_FMT_HWACCEL;
|
|
}
|
|
|
|
enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
|
|
{
|
|
while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt))
|
|
++fmt;
|
|
return fmt[0];
|
|
}
|
|
|
|
void avcodec_get_frame_defaults(AVFrame *frame)
|
|
{
|
|
#if LIBAVCODEC_VERSION_MAJOR >= 55
|
|
// extended_data should explicitly be freed when needed, this code is unsafe currently
|
|
// also this is not compatible to the <55 ABI/API
|
|
if (frame->extended_data != frame->data && 0)
|
|
av_freep(&frame->extended_data);
|
|
#endif
|
|
|
|
memset(frame, 0, sizeof(AVFrame));
|
|
|
|
frame->pts =
|
|
frame->pkt_dts =
|
|
frame->pkt_pts =
|
|
frame->best_effort_timestamp = AV_NOPTS_VALUE;
|
|
frame->pkt_duration = 0;
|
|
frame->pkt_pos = -1;
|
|
frame->pkt_size = -1;
|
|
frame->key_frame = 1;
|
|
frame->sample_aspect_ratio = (AVRational) {0, 1 };
|
|
frame->format = -1; /* unknown */
|
|
frame->extended_data = frame->data;
|
|
}
|
|
|
|
AVFrame *avcodec_alloc_frame(void)
|
|
{
|
|
AVFrame *frame = av_malloc(sizeof(AVFrame));
|
|
|
|
if (frame == NULL)
|
|
return NULL;
|
|
|
|
frame->extended_data = NULL;
|
|
avcodec_get_frame_defaults(frame);
|
|
|
|
return frame;
|
|
}
|
|
|
|
void avcodec_free_frame(AVFrame **frame)
|
|
{
|
|
AVFrame *f;
|
|
|
|
if (!frame || !*frame)
|
|
return;
|
|
|
|
f = *frame;
|
|
|
|
if (f->extended_data != f->data)
|
|
av_freep(&f->extended_data);
|
|
|
|
av_freep(frame);
|
|
}
|
|
|
|
#define MAKE_ACCESSORS(str, name, type, field) \
|
|
type av_##name##_get_##field(const str *s) { return s->field; } \
|
|
void av_##name##_set_##field(str *s, type v) { s->field = v; }
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, best_effort_timestamp)
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_duration)
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_pos)
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, channel_layout)
|
|
MAKE_ACCESSORS(AVFrame, frame, int, channels)
|
|
MAKE_ACCESSORS(AVFrame, frame, int, sample_rate)
|
|
MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata)
|
|
MAKE_ACCESSORS(AVFrame, frame, int, decode_error_flags)
|
|
MAKE_ACCESSORS(AVFrame, frame, int, pkt_size)
|
|
|
|
MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase)
|
|
MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor)
|
|
|
|
static void avcodec_get_subtitle_defaults(AVSubtitle *sub)
|
|
{
|
|
memset(sub, 0, sizeof(*sub));
|
|
sub->pts = AV_NOPTS_VALUE;
|
|
}
|
|
|
|
static int get_bit_rate(AVCodecContext *ctx)
|
|
{
|
|
int bit_rate;
|
|
int bits_per_sample;
|
|
|
|
switch (ctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
case AVMEDIA_TYPE_DATA:
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
case AVMEDIA_TYPE_ATTACHMENT:
|
|
bit_rate = ctx->bit_rate;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
|
|
bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate;
|
|
break;
|
|
default:
|
|
bit_rate = 0;
|
|
break;
|
|
}
|
|
return bit_rate;
|
|
}
|
|
|
|
#if FF_API_AVCODEC_OPEN
|
|
int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
|
|
{
|
|
return avcodec_open2(avctx, codec, NULL);
|
|
}
|
|
#endif
|
|
|
|
int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
|
|
{
|
|
int ret = 0;
|
|
|
|
ff_unlock_avcodec();
|
|
|
|
ret = avcodec_open2(avctx, codec, options);
|
|
|
|
ff_lock_avcodec(avctx);
|
|
return ret;
|
|
}
|
|
|
|
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
|
|
{
|
|
int ret = 0;
|
|
AVDictionary *tmp = NULL;
|
|
|
|
if (avcodec_is_open(avctx))
|
|
return 0;
|
|
|
|
if ((!codec && !avctx->codec)) {
|
|
av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if ((codec && avctx->codec && codec != avctx->codec)) {
|
|
av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, "
|
|
"but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (!codec)
|
|
codec = avctx->codec;
|
|
|
|
if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE)
|
|
return AVERROR(EINVAL);
|
|
|
|
if (options)
|
|
av_dict_copy(&tmp, *options, 0);
|
|
|
|
ret = ff_lock_avcodec(avctx);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
avctx->internal = av_mallocz(sizeof(AVCodecInternal));
|
|
if (!avctx->internal) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto end;
|
|
}
|
|
|
|
if (codec->priv_data_size > 0) {
|
|
if (!avctx->priv_data) {
|
|
avctx->priv_data = av_mallocz(codec->priv_data_size);
|
|
if (!avctx->priv_data) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto end;
|
|
}
|
|
if (codec->priv_class) {
|
|
*(const AVClass **)avctx->priv_data = codec->priv_class;
|
|
av_opt_set_defaults(avctx->priv_data);
|
|
}
|
|
}
|
|
if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0)
|
|
goto free_and_end;
|
|
} else {
|
|
avctx->priv_data = NULL;
|
|
}
|
|
if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
|
|
goto free_and_end;
|
|
|
|
//We only call avcodec_set_dimensions() for non h264 codecs so as not to overwrite previously setup dimensions
|
|
if (!( avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && avctx->codec_id == AV_CODEC_ID_H264)){
|
|
|
|
if (avctx->coded_width && avctx->coded_height)
|
|
avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
|
|
else if (avctx->width && avctx->height)
|
|
avcodec_set_dimensions(avctx, avctx->width, avctx->height);
|
|
}
|
|
|
|
if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height)
|
|
&& ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0
|
|
|| av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n");
|
|
avcodec_set_dimensions(avctx, 0, 0);
|
|
}
|
|
|
|
/* if the decoder init function was already called previously,
|
|
* free the already allocated subtitle_header before overwriting it */
|
|
if (av_codec_is_decoder(codec))
|
|
av_freep(&avctx->subtitle_header);
|
|
|
|
if (avctx->channels > FF_SANE_NB_CHANNELS) {
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
|
|
avctx->codec = codec;
|
|
if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) &&
|
|
avctx->codec_id == AV_CODEC_ID_NONE) {
|
|
avctx->codec_type = codec->type;
|
|
avctx->codec_id = codec->id;
|
|
}
|
|
if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type
|
|
&& avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) {
|
|
av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
avctx->frame_number = 0;
|
|
avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id);
|
|
|
|
if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
|
|
avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
|
|
const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder";
|
|
AVCodec *codec2;
|
|
av_log(NULL, AV_LOG_ERROR,
|
|
"The %s '%s' is experimental but experimental codecs are not enabled, "
|
|
"add '-strict %d' if you want to use it.\n",
|
|
codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL);
|
|
codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id);
|
|
if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL))
|
|
av_log(NULL, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n",
|
|
codec_string, codec2->name);
|
|
ret = AVERROR_EXPERIMENTAL;
|
|
goto free_and_end;
|
|
}
|
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
|
|
(!avctx->time_base.num || !avctx->time_base.den)) {
|
|
avctx->time_base.num = 1;
|
|
avctx->time_base.den = avctx->sample_rate;
|
|
}
|
|
|
|
if (!HAVE_THREADS)
|
|
av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
|
|
|
|
if (HAVE_THREADS) {
|
|
ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
|
|
ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
|
|
ff_lock_avcodec(avctx);
|
|
if (ret < 0)
|
|
goto free_and_end;
|
|
}
|
|
|
|
if (HAVE_THREADS && !avctx->thread_opaque
|
|
&& !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) {
|
|
ret = ff_thread_init(avctx);
|
|
if (ret < 0) {
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
|
|
avctx->thread_count = 1;
|
|
|
|
if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
|
|
avctx->codec->max_lowres);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
|
|
if (av_codec_is_encoder(avctx->codec)) {
|
|
int i;
|
|
if (avctx->codec->sample_fmts) {
|
|
for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
|
|
if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
|
|
break;
|
|
if (avctx->channels == 1 &&
|
|
av_get_planar_sample_fmt(avctx->sample_fmt) ==
|
|
av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) {
|
|
avctx->sample_fmt = avctx->codec->sample_fmts[i];
|
|
break;
|
|
}
|
|
}
|
|
if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) {
|
|
char buf[128];
|
|
snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt);
|
|
av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n",
|
|
(char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf));
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (avctx->codec->pix_fmts) {
|
|
for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++)
|
|
if (avctx->pix_fmt == avctx->codec->pix_fmts[i])
|
|
break;
|
|
if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE
|
|
&& !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG)
|
|
&& avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
|
|
char buf[128];
|
|
snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt);
|
|
av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n",
|
|
(char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf));
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (avctx->codec->supported_samplerates) {
|
|
for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++)
|
|
if (avctx->sample_rate == avctx->codec->supported_samplerates[i])
|
|
break;
|
|
if (avctx->codec->supported_samplerates[i] == 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n",
|
|
avctx->sample_rate);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
if (avctx->codec->channel_layouts) {
|
|
if (!avctx->channel_layout) {
|
|
av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n");
|
|
} else {
|
|
for (i = 0; avctx->codec->channel_layouts[i] != 0; i++)
|
|
if (avctx->channel_layout == avctx->codec->channel_layouts[i])
|
|
break;
|
|
if (avctx->codec->channel_layouts[i] == 0) {
|
|
char buf[512];
|
|
av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
|
|
av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
}
|
|
if (avctx->channel_layout && avctx->channels) {
|
|
int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
|
|
if (channels != avctx->channels) {
|
|
char buf[512];
|
|
av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Channel layout '%s' with %d channels does not match number of specified channels %d\n",
|
|
buf, channels, avctx->channels);
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
} else if (avctx->channel_layout) {
|
|
avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
|
|
}
|
|
if(avctx->codec_type == AVMEDIA_TYPE_VIDEO &&
|
|
avctx->codec_id != AV_CODEC_ID_PNG // For mplayer
|
|
) {
|
|
if (avctx->width <= 0 || avctx->height <= 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "dimensions not set\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
}
|
|
|
|
avctx->pts_correction_num_faulty_pts =
|
|
avctx->pts_correction_num_faulty_dts = 0;
|
|
avctx->pts_correction_last_pts =
|
|
avctx->pts_correction_last_dts = INT64_MIN;
|
|
|
|
if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME)
|
|
|| avctx->internal->frame_thread_encoder)) {
|
|
ret = avctx->codec->init(avctx);
|
|
if (ret < 0) {
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
|
|
ret=0;
|
|
|
|
if (av_codec_is_decoder(avctx->codec)) {
|
|
if (!avctx->bit_rate)
|
|
avctx->bit_rate = get_bit_rate(avctx);
|
|
/* validate channel layout from the decoder */
|
|
if (avctx->channel_layout) {
|
|
int channels = av_get_channel_layout_nb_channels(avctx->channel_layout);
|
|
if (!avctx->channels)
|
|
avctx->channels = channels;
|
|
else if (channels != avctx->channels) {
|
|
char buf[512];
|
|
av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout);
|
|
av_log(avctx, AV_LOG_WARNING,
|
|
"Channel layout '%s' with %d channels does not match specified number of channels %d: "
|
|
"ignoring specified channel layout\n",
|
|
buf, channels, avctx->channels);
|
|
avctx->channel_layout = 0;
|
|
}
|
|
}
|
|
if (avctx->channels && avctx->channels < 0 ||
|
|
avctx->channels > FF_SANE_NB_CHANNELS) {
|
|
ret = AVERROR(EINVAL);
|
|
goto free_and_end;
|
|
}
|
|
}
|
|
end:
|
|
ff_unlock_avcodec();
|
|
if (options) {
|
|
av_dict_free(options);
|
|
*options = tmp;
|
|
}
|
|
|
|
return ret;
|
|
free_and_end:
|
|
av_dict_free(&tmp);
|
|
av_freep(&avctx->priv_data);
|
|
av_freep(&avctx->internal);
|
|
avctx->codec = NULL;
|
|
goto end;
|
|
}
|
|
|
|
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int size)
|
|
{
|
|
if (size < 0 || avpkt->size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
|
|
av_log(avctx, AV_LOG_ERROR, "Size %d invalid\n", size);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (avctx) {
|
|
av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer);
|
|
if (!avpkt->data || avpkt->size < size) {
|
|
av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
|
|
avpkt->data = avctx->internal->byte_buffer;
|
|
avpkt->size = avctx->internal->byte_buffer_size;
|
|
avpkt->destruct = NULL;
|
|
}
|
|
}
|
|
|
|
if (avpkt->data) {
|
|
void *destruct = avpkt->destruct;
|
|
|
|
if (avpkt->size < size) {
|
|
av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %d)\n", avpkt->size, size);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
av_init_packet(avpkt);
|
|
avpkt->destruct = destruct;
|
|
avpkt->size = size;
|
|
return 0;
|
|
} else {
|
|
int ret = av_new_packet(avpkt, size);
|
|
if (ret < 0)
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %d\n", size);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
int ff_alloc_packet(AVPacket *avpkt, int size)
|
|
{
|
|
return ff_alloc_packet2(NULL, avpkt, size);
|
|
}
|
|
|
|
/**
|
|
* Pad last frame with silence.
|
|
*/
|
|
static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src)
|
|
{
|
|
AVFrame *frame = NULL;
|
|
uint8_t *buf = NULL;
|
|
int ret;
|
|
|
|
if (!(frame = avcodec_alloc_frame()))
|
|
return AVERROR(ENOMEM);
|
|
*frame = *src;
|
|
|
|
if ((ret = av_samples_get_buffer_size(&frame->linesize[0], s->channels,
|
|
s->frame_size, s->sample_fmt, 0)) < 0)
|
|
goto fail;
|
|
|
|
if (!(buf = av_malloc(ret))) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
frame->nb_samples = s->frame_size;
|
|
if ((ret = avcodec_fill_audio_frame(frame, s->channels, s->sample_fmt,
|
|
buf, ret, 0)) < 0)
|
|
goto fail;
|
|
if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
|
|
src->nb_samples, s->channels, s->sample_fmt)) < 0)
|
|
goto fail;
|
|
if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
|
|
frame->nb_samples - src->nb_samples,
|
|
s->channels, s->sample_fmt)) < 0)
|
|
goto fail;
|
|
|
|
*dst = frame;
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
if (frame->extended_data != frame->data)
|
|
av_freep(&frame->extended_data);
|
|
av_freep(&buf);
|
|
av_freep(&frame);
|
|
return ret;
|
|
}
|
|
|
|
int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
|
|
AVPacket *avpkt,
|
|
const AVFrame *frame,
|
|
int *got_packet_ptr)
|
|
{
|
|
AVFrame tmp;
|
|
AVFrame *padded_frame = NULL;
|
|
int ret;
|
|
AVPacket user_pkt = *avpkt;
|
|
int needs_realloc = !user_pkt.data;
|
|
|
|
*got_packet_ptr = 0;
|
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
|
|
av_free_packet(avpkt);
|
|
av_init_packet(avpkt);
|
|
return 0;
|
|
}
|
|
|
|
/* ensure that extended_data is properly set */
|
|
if (frame && !frame->extended_data) {
|
|
if (av_sample_fmt_is_planar(avctx->sample_fmt) &&
|
|
avctx->channels > AV_NUM_DATA_POINTERS) {
|
|
av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, "
|
|
"with more than %d channels, but extended_data is not set.\n",
|
|
AV_NUM_DATA_POINTERS);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n");
|
|
|
|
tmp = *frame;
|
|
tmp.extended_data = tmp.data;
|
|
frame = &tmp;
|
|
}
|
|
|
|
/* check for valid frame size */
|
|
if (frame) {
|
|
if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
|
|
if (frame->nb_samples > avctx->frame_size) {
|
|
av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
|
|
if (frame->nb_samples < avctx->frame_size &&
|
|
!avctx->internal->last_audio_frame) {
|
|
ret = pad_last_frame(avctx, &padded_frame, frame);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
frame = padded_frame;
|
|
avctx->internal->last_audio_frame = 1;
|
|
}
|
|
|
|
if (frame->nb_samples != avctx->frame_size) {
|
|
av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size);
|
|
ret = AVERROR(EINVAL);
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
|
|
ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
|
|
if (!ret) {
|
|
if (*got_packet_ptr) {
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) {
|
|
if (avpkt->pts == AV_NOPTS_VALUE)
|
|
avpkt->pts = frame->pts;
|
|
if (!avpkt->duration)
|
|
avpkt->duration = ff_samples_to_time_base(avctx,
|
|
frame->nb_samples);
|
|
}
|
|
avpkt->dts = avpkt->pts;
|
|
} else {
|
|
avpkt->size = 0;
|
|
}
|
|
}
|
|
if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
|
|
needs_realloc = 0;
|
|
if (user_pkt.data) {
|
|
if (user_pkt.size >= avpkt->size) {
|
|
memcpy(user_pkt.data, avpkt->data, avpkt->size);
|
|
} else {
|
|
av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
|
|
avpkt->size = user_pkt.size;
|
|
ret = -1;
|
|
}
|
|
avpkt->data = user_pkt.data;
|
|
avpkt->destruct = user_pkt.destruct;
|
|
} else {
|
|
if (av_dup_packet(avpkt) < 0) {
|
|
ret = AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!ret) {
|
|
if (needs_realloc && avpkt->data) {
|
|
uint8_t *new_data = av_realloc(avpkt->data, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
|
|
if (new_data)
|
|
avpkt->data = new_data;
|
|
}
|
|
|
|
avctx->frame_number++;
|
|
}
|
|
|
|
if (ret < 0 || !*got_packet_ptr) {
|
|
av_free_packet(avpkt);
|
|
av_init_packet(avpkt);
|
|
goto end;
|
|
}
|
|
|
|
/* NOTE: if we add any audio encoders which output non-keyframe packets,
|
|
* this needs to be moved to the encoders, but for now we can do it
|
|
* here to simplify things */
|
|
avpkt->flags |= AV_PKT_FLAG_KEY;
|
|
|
|
end:
|
|
if (padded_frame) {
|
|
av_freep(&padded_frame->data[0]);
|
|
if (padded_frame->extended_data != padded_frame->data)
|
|
av_freep(&padded_frame->extended_data);
|
|
av_freep(&padded_frame);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if FF_API_OLD_ENCODE_AUDIO
|
|
int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx,
|
|
uint8_t *buf, int buf_size,
|
|
const short *samples)
|
|
{
|
|
AVPacket pkt;
|
|
AVFrame frame0 = { 0 };
|
|
AVFrame *frame;
|
|
int ret, samples_size, got_packet;
|
|
|
|
av_init_packet(&pkt);
|
|
pkt.data = buf;
|
|
pkt.size = buf_size;
|
|
|
|
if (samples) {
|
|
frame = &frame0;
|
|
avcodec_get_frame_defaults(frame);
|
|
|
|
if (avctx->frame_size) {
|
|
frame->nb_samples = avctx->frame_size;
|
|
} else {
|
|
/* if frame_size is not set, the number of samples must be
|
|
* calculated from the buffer size */
|
|
int64_t nb_samples;
|
|
if (!av_get_bits_per_sample(avctx->codec_id)) {
|
|
av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not "
|
|
"support this codec\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
nb_samples = (int64_t)buf_size * 8 /
|
|
(av_get_bits_per_sample(avctx->codec_id) *
|
|
avctx->channels);
|
|
if (nb_samples >= INT_MAX)
|
|
return AVERROR(EINVAL);
|
|
frame->nb_samples = nb_samples;
|
|
}
|
|
|
|
/* it is assumed that the samples buffer is large enough based on the
|
|
* relevant parameters */
|
|
samples_size = av_samples_get_buffer_size(NULL, avctx->channels,
|
|
frame->nb_samples,
|
|
avctx->sample_fmt, 1);
|
|
if ((ret = avcodec_fill_audio_frame(frame, avctx->channels,
|
|
avctx->sample_fmt,
|
|
(const uint8_t *)samples,
|
|
samples_size, 1)) < 0)
|
|
return ret;
|
|
|
|
/* fabricate frame pts from sample count.
|
|
* this is needed because the avcodec_encode_audio() API does not have
|
|
* a way for the user to provide pts */
|
|
if (avctx->sample_rate && avctx->time_base.num)
|
|
frame->pts = ff_samples_to_time_base(avctx,
|
|
avctx->internal->sample_count);
|
|
else
|
|
frame->pts = AV_NOPTS_VALUE;
|
|
avctx->internal->sample_count += frame->nb_samples;
|
|
} else {
|
|
frame = NULL;
|
|
}
|
|
|
|
got_packet = 0;
|
|
ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet);
|
|
if (!ret && got_packet && avctx->coded_frame) {
|
|
avctx->coded_frame->pts = pkt.pts;
|
|
avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
|
|
}
|
|
/* free any side data since we cannot return it */
|
|
ff_packet_free_side_data(&pkt);
|
|
|
|
if (frame && frame->extended_data != frame->data)
|
|
av_freep(&frame->extended_data);
|
|
|
|
return ret ? ret : pkt.size;
|
|
}
|
|
|
|
#endif
|
|
|
|
#if FF_API_OLD_ENCODE_VIDEO
|
|
int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
|
|
const AVFrame *pict)
|
|
{
|
|
AVPacket pkt;
|
|
int ret, got_packet = 0;
|
|
|
|
if (buf_size < FF_MIN_BUFFER_SIZE) {
|
|
av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
|
|
return -1;
|
|
}
|
|
|
|
av_init_packet(&pkt);
|
|
pkt.data = buf;
|
|
pkt.size = buf_size;
|
|
|
|
ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet);
|
|
if (!ret && got_packet && avctx->coded_frame) {
|
|
avctx->coded_frame->pts = pkt.pts;
|
|
avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY);
|
|
}
|
|
|
|
/* free any side data since we cannot return it */
|
|
if (pkt.side_data_elems > 0) {
|
|
int i;
|
|
for (i = 0; i < pkt.side_data_elems; i++)
|
|
av_free(pkt.side_data[i].data);
|
|
av_freep(&pkt.side_data);
|
|
pkt.side_data_elems = 0;
|
|
}
|
|
|
|
return ret ? ret : pkt.size;
|
|
}
|
|
|
|
#endif
|
|
|
|
int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
|
|
AVPacket *avpkt,
|
|
const AVFrame *frame,
|
|
int *got_packet_ptr)
|
|
{
|
|
int ret;
|
|
AVPacket user_pkt = *avpkt;
|
|
int needs_realloc = !user_pkt.data;
|
|
|
|
*got_packet_ptr = 0;
|
|
|
|
if(HAVE_THREADS && avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))
|
|
return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr);
|
|
|
|
if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out)
|
|
avctx->stats_out[0] = '\0';
|
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) {
|
|
av_free_packet(avpkt);
|
|
av_init_packet(avpkt);
|
|
avpkt->size = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (av_image_check_size(avctx->width, avctx->height, 0, avctx))
|
|
return AVERROR(EINVAL);
|
|
|
|
av_assert0(avctx->codec->encode2);
|
|
|
|
ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr);
|
|
av_assert0(ret <= 0);
|
|
|
|
if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) {
|
|
needs_realloc = 0;
|
|
if (user_pkt.data) {
|
|
if (user_pkt.size >= avpkt->size) {
|
|
memcpy(user_pkt.data, avpkt->data, avpkt->size);
|
|
} else {
|
|
av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
|
|
avpkt->size = user_pkt.size;
|
|
ret = -1;
|
|
}
|
|
avpkt->data = user_pkt.data;
|
|
avpkt->destruct = user_pkt.destruct;
|
|
} else {
|
|
if (av_dup_packet(avpkt) < 0) {
|
|
ret = AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!ret) {
|
|
if (!*got_packet_ptr)
|
|
avpkt->size = 0;
|
|
else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY))
|
|
avpkt->pts = avpkt->dts = frame->pts;
|
|
|
|
if (needs_realloc && avpkt->data &&
|
|
avpkt->destruct == av_destruct_packet) {
|
|
uint8_t *new_data = av_realloc(avpkt->data, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
|
|
if (new_data)
|
|
avpkt->data = new_data;
|
|
}
|
|
|
|
avctx->frame_number++;
|
|
}
|
|
|
|
if (ret < 0 || !*got_packet_ptr)
|
|
av_free_packet(avpkt);
|
|
|
|
emms_c();
|
|
return ret;
|
|
}
|
|
|
|
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
|
|
const AVSubtitle *sub)
|
|
{
|
|
int ret;
|
|
if (sub->start_display_time) {
|
|
av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
|
|
return -1;
|
|
}
|
|
|
|
ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
|
|
avctx->frame_number++;
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Attempt to guess proper monotonic timestamps for decoded video frames
|
|
* which might have incorrect times. Input timestamps may wrap around, in
|
|
* which case the output will as well.
|
|
*
|
|
* @param pts the pts field of the decoded AVPacket, as passed through
|
|
* AVFrame.pkt_pts
|
|
* @param dts the dts field of the decoded AVPacket
|
|
* @return one of the input values, may be AV_NOPTS_VALUE
|
|
*/
|
|
static int64_t guess_correct_pts(AVCodecContext *ctx,
|
|
int64_t reordered_pts, int64_t dts)
|
|
{
|
|
int64_t pts = AV_NOPTS_VALUE;
|
|
|
|
if (dts != AV_NOPTS_VALUE) {
|
|
ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
|
|
ctx->pts_correction_last_dts = dts;
|
|
}
|
|
if (reordered_pts != AV_NOPTS_VALUE) {
|
|
ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
|
|
ctx->pts_correction_last_pts = reordered_pts;
|
|
}
|
|
if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
|
|
&& reordered_pts != AV_NOPTS_VALUE)
|
|
pts = reordered_pts;
|
|
else
|
|
pts = dts;
|
|
|
|
return pts;
|
|
}
|
|
|
|
static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
|
|
{
|
|
int size = 0;
|
|
const uint8_t *data;
|
|
uint32_t flags;
|
|
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE))
|
|
return;
|
|
|
|
data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
|
|
if (!data || size < 4)
|
|
return;
|
|
flags = bytestream_get_le32(&data);
|
|
size -= 4;
|
|
if (size < 4) /* Required for any of the changes */
|
|
return;
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
|
|
avctx->channels = bytestream_get_le32(&data);
|
|
size -= 4;
|
|
}
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
|
|
if (size < 8)
|
|
return;
|
|
avctx->channel_layout = bytestream_get_le64(&data);
|
|
size -= 8;
|
|
}
|
|
if (size < 4)
|
|
return;
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
|
|
avctx->sample_rate = bytestream_get_le32(&data);
|
|
size -= 4;
|
|
}
|
|
if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
|
|
if (size < 8)
|
|
return;
|
|
avctx->width = bytestream_get_le32(&data);
|
|
avctx->height = bytestream_get_le32(&data);
|
|
avcodec_set_dimensions(avctx, avctx->width, avctx->height);
|
|
size -= 8;
|
|
}
|
|
}
|
|
|
|
static int add_metadata_from_side_data(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
int size, ret = 0;
|
|
const uint8_t *side_metadata;
|
|
const uint8_t *end;
|
|
|
|
av_dict_free(&avctx->metadata);
|
|
side_metadata = av_packet_get_side_data(avctx->pkt,
|
|
AV_PKT_DATA_STRINGS_METADATA, &size);
|
|
if (!side_metadata)
|
|
goto end;
|
|
end = side_metadata + size;
|
|
while (side_metadata < end) {
|
|
const uint8_t *key = side_metadata;
|
|
const uint8_t *val = side_metadata + strlen(key) + 1;
|
|
int ret = av_dict_set(&frame->metadata, key, val, 0);
|
|
if (ret < 0)
|
|
break;
|
|
side_metadata = val + strlen(val) + 1;
|
|
}
|
|
end:
|
|
avctx->metadata = frame->metadata;
|
|
return ret;
|
|
}
|
|
|
|
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
|
|
int *got_picture_ptr,
|
|
const AVPacket *avpkt)
|
|
{
|
|
int ret;
|
|
// copy to ensure we do not change avpkt
|
|
AVPacket tmp = *avpkt;
|
|
|
|
if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
*got_picture_ptr = 0;
|
|
if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx))
|
|
return AVERROR(EINVAL);
|
|
|
|
avcodec_get_frame_defaults(picture);
|
|
|
|
if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) {
|
|
int did_split = av_packet_split_side_data(&tmp);
|
|
apply_param_change(avctx, &tmp);
|
|
avctx->pkt = &tmp;
|
|
if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
|
|
ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
|
|
&tmp);
|
|
else {
|
|
ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
|
|
&tmp);
|
|
picture->pkt_dts = avpkt->dts;
|
|
|
|
if(!avctx->has_b_frames){
|
|
picture->pkt_pos = avpkt->pos;
|
|
}
|
|
//FIXME these should be under if(!avctx->has_b_frames)
|
|
/* get_buffer is supposed to set frame parameters */
|
|
if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) {
|
|
if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
|
|
if (!picture->width) picture->width = avctx->width;
|
|
if (!picture->height) picture->height = avctx->height;
|
|
if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt;
|
|
}
|
|
}
|
|
add_metadata_from_side_data(avctx, picture);
|
|
|
|
emms_c(); //needed to avoid an emms_c() call before every return;
|
|
|
|
avctx->pkt = NULL;
|
|
if (did_split) {
|
|
ff_packet_free_side_data(&tmp);
|
|
if(ret == tmp.size)
|
|
ret = avpkt->size;
|
|
}
|
|
|
|
if (*got_picture_ptr){
|
|
avctx->frame_number++;
|
|
picture->best_effort_timestamp = guess_correct_pts(avctx,
|
|
picture->pkt_pts,
|
|
picture->pkt_dts);
|
|
}
|
|
} else
|
|
ret = 0;
|
|
|
|
/* many decoders assign whole AVFrames, thus overwriting extended_data;
|
|
* make sure it's set correctly */
|
|
picture->extended_data = picture->data;
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if FF_API_OLD_DECODE_AUDIO
|
|
int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
|
|
int *frame_size_ptr,
|
|
AVPacket *avpkt)
|
|
{
|
|
AVFrame frame = {0};
|
|
int ret, got_frame = 0;
|
|
|
|
if (avctx->get_buffer != avcodec_default_get_buffer) {
|
|
av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with"
|
|
"avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n");
|
|
av_log(avctx, AV_LOG_ERROR, "Please port your application to "
|
|
"avcodec_decode_audio4()\n");
|
|
avctx->get_buffer = avcodec_default_get_buffer;
|
|
avctx->release_buffer = avcodec_default_release_buffer;
|
|
}
|
|
|
|
ret = avcodec_decode_audio4(avctx, &frame, &got_frame, avpkt);
|
|
|
|
if (ret >= 0 && got_frame) {
|
|
int ch, plane_size;
|
|
int planar = av_sample_fmt_is_planar(avctx->sample_fmt);
|
|
int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels,
|
|
frame.nb_samples,
|
|
avctx->sample_fmt, 1);
|
|
if (*frame_size_ptr < data_size) {
|
|
av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for "
|
|
"the current frame (%d < %d)\n", *frame_size_ptr, data_size);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
memcpy(samples, frame.extended_data[0], plane_size);
|
|
|
|
if (planar && avctx->channels > 1) {
|
|
uint8_t *out = ((uint8_t *)samples) + plane_size;
|
|
for (ch = 1; ch < avctx->channels; ch++) {
|
|
memcpy(out, frame.extended_data[ch], plane_size);
|
|
out += plane_size;
|
|
}
|
|
}
|
|
*frame_size_ptr = data_size;
|
|
} else {
|
|
*frame_size_ptr = 0;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#endif
|
|
|
|
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
|
|
AVFrame *frame,
|
|
int *got_frame_ptr,
|
|
const AVPacket *avpkt)
|
|
{
|
|
int planar, channels;
|
|
int ret = 0;
|
|
|
|
*got_frame_ptr = 0;
|
|
|
|
if (!avpkt->data && avpkt->size) {
|
|
av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
avcodec_get_frame_defaults(frame);
|
|
|
|
if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
|
|
uint8_t *side;
|
|
int side_size;
|
|
// copy to ensure we do not change avpkt
|
|
AVPacket tmp = *avpkt;
|
|
int did_split = av_packet_split_side_data(&tmp);
|
|
apply_param_change(avctx, &tmp);
|
|
|
|
avctx->pkt = &tmp;
|
|
ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp);
|
|
if (ret >= 0 && *got_frame_ptr) {
|
|
avctx->frame_number++;
|
|
frame->pkt_dts = avpkt->dts;
|
|
frame->best_effort_timestamp = guess_correct_pts(avctx,
|
|
frame->pkt_pts,
|
|
frame->pkt_dts);
|
|
if (frame->format == AV_SAMPLE_FMT_NONE)
|
|
frame->format = avctx->sample_fmt;
|
|
if (!frame->channel_layout)
|
|
frame->channel_layout = avctx->channel_layout;
|
|
if (!frame->channels)
|
|
frame->channels = avctx->channels;
|
|
if (!frame->sample_rate)
|
|
frame->sample_rate = avctx->sample_rate;
|
|
}
|
|
add_metadata_from_side_data(avctx, frame);
|
|
|
|
side= av_packet_get_side_data(avctx->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
|
|
if(side && side_size>=10) {
|
|
avctx->internal->skip_samples = AV_RL32(side);
|
|
av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n",
|
|
avctx->internal->skip_samples);
|
|
}
|
|
if (avctx->internal->skip_samples) {
|
|
if(frame->nb_samples <= avctx->internal->skip_samples){
|
|
*got_frame_ptr = 0;
|
|
avctx->internal->skip_samples -= frame->nb_samples;
|
|
av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
|
|
avctx->internal->skip_samples);
|
|
} else {
|
|
av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples,
|
|
frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format);
|
|
if(avctx->pkt_timebase.num && avctx->sample_rate) {
|
|
int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples,
|
|
(AVRational){1, avctx->sample_rate},
|
|
avctx->pkt_timebase);
|
|
if(frame->pkt_pts!=AV_NOPTS_VALUE)
|
|
frame->pkt_pts += diff_ts;
|
|
if(frame->pkt_dts!=AV_NOPTS_VALUE)
|
|
frame->pkt_dts += diff_ts;
|
|
if (frame->pkt_duration >= diff_ts)
|
|
frame->pkt_duration -= diff_ts;
|
|
} else {
|
|
av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
|
|
}
|
|
av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
|
|
avctx->internal->skip_samples, frame->nb_samples);
|
|
frame->nb_samples -= avctx->internal->skip_samples;
|
|
avctx->internal->skip_samples = 0;
|
|
}
|
|
}
|
|
|
|
avctx->pkt = NULL;
|
|
if (did_split) {
|
|
ff_packet_free_side_data(&tmp);
|
|
if(ret == tmp.size)
|
|
ret = avpkt->size;
|
|
}
|
|
}
|
|
|
|
/* many decoders assign whole AVFrames, thus overwriting extended_data;
|
|
* make sure it's set correctly; assume decoders that actually use
|
|
* extended_data are doing it correctly */
|
|
if (*got_frame_ptr) {
|
|
planar = av_sample_fmt_is_planar(frame->format);
|
|
channels = av_get_channel_layout_nb_channels(frame->channel_layout);
|
|
if (!(planar && channels > AV_NUM_DATA_POINTERS))
|
|
frame->extended_data = frame->data;
|
|
} else {
|
|
frame->extended_data = NULL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
|
|
int *got_sub_ptr,
|
|
AVPacket *avpkt)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
*got_sub_ptr = 0;
|
|
avcodec_get_subtitle_defaults(sub);
|
|
|
|
if (avpkt->size) {
|
|
AVPacket tmp = *avpkt;
|
|
int did_split = av_packet_split_side_data(&tmp);
|
|
//apply_param_change(avctx, &tmp);
|
|
|
|
avctx->pkt = &tmp;
|
|
|
|
if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE)
|
|
sub->pts = av_rescale_q(avpkt->pts,
|
|
avctx->pkt_timebase, AV_TIME_BASE_Q);
|
|
ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &tmp);
|
|
|
|
avctx->pkt = NULL;
|
|
if (did_split) {
|
|
ff_packet_free_side_data(&tmp);
|
|
if(ret == tmp.size)
|
|
ret = avpkt->size;
|
|
}
|
|
|
|
if (*got_sub_ptr)
|
|
avctx->frame_number++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void avsubtitle_free(AVSubtitle *sub)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sub->num_rects; i++) {
|
|
av_freep(&sub->rects[i]->pict.data[0]);
|
|
av_freep(&sub->rects[i]->pict.data[1]);
|
|
av_freep(&sub->rects[i]->pict.data[2]);
|
|
av_freep(&sub->rects[i]->pict.data[3]);
|
|
av_freep(&sub->rects[i]->text);
|
|
av_freep(&sub->rects[i]->ass);
|
|
av_freep(&sub->rects[i]);
|
|
}
|
|
|
|
av_freep(&sub->rects);
|
|
|
|
memset(sub, 0, sizeof(AVSubtitle));
|
|
}
|
|
|
|
av_cold int ff_codec_close_recursive(AVCodecContext *avctx)
|
|
{
|
|
int ret = 0;
|
|
|
|
ff_unlock_avcodec();
|
|
|
|
ret = avcodec_close(avctx);
|
|
|
|
ff_lock_avcodec(NULL);
|
|
return ret;
|
|
}
|
|
|
|
av_cold int avcodec_close(AVCodecContext *avctx)
|
|
{
|
|
int ret = ff_lock_avcodec(avctx);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (avcodec_is_open(avctx)) {
|
|
if (HAVE_THREADS && avctx->internal->frame_thread_encoder && avctx->thread_count > 1) {
|
|
ff_unlock_avcodec();
|
|
ff_frame_thread_encoder_free(avctx);
|
|
ff_lock_avcodec(avctx);
|
|
}
|
|
if (HAVE_THREADS && avctx->thread_opaque)
|
|
ff_thread_free(avctx);
|
|
if (avctx->codec && avctx->codec->close)
|
|
avctx->codec->close(avctx);
|
|
avcodec_default_free_buffers(avctx);
|
|
avctx->coded_frame = NULL;
|
|
avctx->internal->byte_buffer_size = 0;
|
|
av_freep(&avctx->internal->byte_buffer);
|
|
av_freep(&avctx->internal);
|
|
av_dict_free(&avctx->metadata);
|
|
}
|
|
|
|
if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
|
|
av_opt_free(avctx->priv_data);
|
|
av_opt_free(avctx);
|
|
av_freep(&avctx->priv_data);
|
|
if (av_codec_is_encoder(avctx->codec))
|
|
av_freep(&avctx->extradata);
|
|
avctx->codec = NULL;
|
|
avctx->active_thread_type = 0;
|
|
|
|
ff_unlock_avcodec();
|
|
return 0;
|
|
}
|
|
|
|
static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
|
|
{
|
|
switch(id){
|
|
//This is for future deprecatec codec ids, its empty since
|
|
//last major bump but will fill up again over time, please don't remove it
|
|
// case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO;
|
|
case AV_CODEC_ID_OPUS_DEPRECATED: return AV_CODEC_ID_OPUS;
|
|
case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK;
|
|
default : return id;
|
|
}
|
|
}
|
|
|
|
static AVCodec *find_encdec(enum AVCodecID id, int encoder)
|
|
{
|
|
AVCodec *p, *experimental = NULL;
|
|
p = first_avcodec;
|
|
id= remap_deprecated_codec_id(id);
|
|
while (p) {
|
|
if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) &&
|
|
p->id == id) {
|
|
if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) {
|
|
experimental = p;
|
|
} else
|
|
return p;
|
|
}
|
|
p = p->next;
|
|
}
|
|
return experimental;
|
|
}
|
|
|
|
AVCodec *avcodec_find_encoder(enum AVCodecID id)
|
|
{
|
|
return find_encdec(id, 1);
|
|
}
|
|
|
|
AVCodec *avcodec_find_encoder_by_name(const char *name)
|
|
{
|
|
AVCodec *p;
|
|
if (!name)
|
|
return NULL;
|
|
p = first_avcodec;
|
|
while (p) {
|
|
if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0)
|
|
return p;
|
|
p = p->next;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
AVCodec *avcodec_find_decoder(enum AVCodecID id)
|
|
{
|
|
return find_encdec(id, 0);
|
|
}
|
|
|
|
AVCodec *avcodec_find_decoder_by_name(const char *name)
|
|
{
|
|
AVCodec *p;
|
|
if (!name)
|
|
return NULL;
|
|
p = first_avcodec;
|
|
while (p) {
|
|
if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0)
|
|
return p;
|
|
p = p->next;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
const char *avcodec_get_name(enum AVCodecID id)
|
|
{
|
|
const AVCodecDescriptor *cd;
|
|
AVCodec *codec;
|
|
|
|
if (id == AV_CODEC_ID_NONE)
|
|
return "none";
|
|
cd = avcodec_descriptor_get(id);
|
|
if (cd)
|
|
return cd->name;
|
|
av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id);
|
|
codec = avcodec_find_decoder(id);
|
|
if (codec)
|
|
return codec->name;
|
|
codec = avcodec_find_encoder(id);
|
|
if (codec)
|
|
return codec->name;
|
|
return "unknown_codec";
|
|
}
|
|
|
|
size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
|
|
{
|
|
int i, len, ret = 0;
|
|
|
|
#define IS_PRINT(x) \
|
|
(((x) >= '0' && (x) <= '9') || \
|
|
((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \
|
|
((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_'))
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
len = snprintf(buf, buf_size,
|
|
IS_PRINT(codec_tag&0xFF) ? "%c" : "[%d]", codec_tag&0xFF);
|
|
buf += len;
|
|
buf_size = buf_size > len ? buf_size - len : 0;
|
|
ret += len;
|
|
codec_tag >>= 8;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
|
|
{
|
|
const char *codec_type;
|
|
const char *codec_name;
|
|
const char *profile = NULL;
|
|
const AVCodec *p;
|
|
int bitrate;
|
|
AVRational display_aspect_ratio;
|
|
|
|
if (!buf || buf_size <= 0)
|
|
return;
|
|
codec_type = av_get_media_type_string(enc->codec_type);
|
|
codec_name = avcodec_get_name(enc->codec_id);
|
|
if (enc->profile != FF_PROFILE_UNKNOWN) {
|
|
if (enc->codec)
|
|
p = enc->codec;
|
|
else
|
|
p = encode ? avcodec_find_encoder(enc->codec_id) :
|
|
avcodec_find_decoder(enc->codec_id);
|
|
if (p)
|
|
profile = av_get_profile_name(p, enc->profile);
|
|
}
|
|
|
|
snprintf(buf, buf_size, "%s: %s%s", codec_type ? codec_type : "unknown",
|
|
codec_name, enc->mb_decision ? " (hq)" : "");
|
|
buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */
|
|
if (profile)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile);
|
|
if (enc->codec_tag) {
|
|
char tag_buf[32];
|
|
av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag);
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" (%s / 0x%04X)", tag_buf, enc->codec_tag);
|
|
}
|
|
|
|
switch (enc->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
if (enc->pix_fmt != AV_PIX_FMT_NONE) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %s",
|
|
av_get_pix_fmt_name(enc->pix_fmt));
|
|
if (enc->bits_per_raw_sample &&
|
|
enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" (%d bpc)", enc->bits_per_raw_sample);
|
|
}
|
|
if (enc->width) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %dx%d",
|
|
enc->width, enc->height);
|
|
if (enc->sample_aspect_ratio.num) {
|
|
av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
|
|
enc->width * enc->sample_aspect_ratio.num,
|
|
enc->height * enc->sample_aspect_ratio.den,
|
|
1024 * 1024);
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
" [SAR %d:%d DAR %d:%d]",
|
|
enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
|
|
display_aspect_ratio.num, display_aspect_ratio.den);
|
|
}
|
|
if (av_log_get_level() >= AV_LOG_DEBUG) {
|
|
int g = av_gcd(enc->time_base.num, enc->time_base.den);
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %d/%d",
|
|
enc->time_base.num / g, enc->time_base.den / g);
|
|
}
|
|
}
|
|
if (encode) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", q=%d-%d", enc->qmin, enc->qmax);
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
if (enc->sample_rate) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %d Hz", enc->sample_rate);
|
|
}
|
|
av_strlcat(buf, ", ", buf_size);
|
|
av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
|
|
if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %s", av_get_sample_fmt_name(enc->sample_fmt));
|
|
}
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
if (encode) {
|
|
if (enc->flags & CODEC_FLAG_PASS1)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", pass 1");
|
|
if (enc->flags & CODEC_FLAG_PASS2)
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", pass 2");
|
|
}
|
|
bitrate = get_bit_rate(enc);
|
|
if (bitrate != 0) {
|
|
snprintf(buf + strlen(buf), buf_size - strlen(buf),
|
|
", %d kb/s", bitrate / 1000);
|
|
}
|
|
}
|
|
|
|
const char *av_get_profile_name(const AVCodec *codec, int profile)
|
|
{
|
|
const AVProfile *p;
|
|
if (profile == FF_PROFILE_UNKNOWN || !codec->profiles)
|
|
return NULL;
|
|
|
|
for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
|
|
if (p->profile == profile)
|
|
return p->name;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
unsigned avcodec_version(void)
|
|
{
|
|
// av_assert0(AV_CODEC_ID_V410==164);
|
|
av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563);
|
|
av_assert0(AV_CODEC_ID_ADPCM_G722==69660);
|
|
// av_assert0(AV_CODEC_ID_BMV_AUDIO==86071);
|
|
av_assert0(AV_CODEC_ID_SRT==94216);
|
|
av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
|
|
|
|
return LIBAVCODEC_VERSION_INT;
|
|
}
|
|
|
|
const char *avcodec_configuration(void)
|
|
{
|
|
return FFMPEG_CONFIGURATION;
|
|
}
|
|
|
|
const char *avcodec_license(void)
|
|
{
|
|
#define LICENSE_PREFIX "libavcodec license: "
|
|
return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
|
|
}
|
|
|
|
void avcodec_flush_buffers(AVCodecContext *avctx)
|
|
{
|
|
if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME)
|
|
ff_thread_flush(avctx);
|
|
else if (avctx->codec->flush)
|
|
avctx->codec->flush(avctx);
|
|
|
|
avctx->pts_correction_last_pts =
|
|
avctx->pts_correction_last_dts = INT64_MIN;
|
|
}
|
|
|
|
static void video_free_buffers(AVCodecContext *s)
|
|
{
|
|
AVCodecInternal *avci = s->internal;
|
|
int i, j;
|
|
|
|
if (!avci->buffer)
|
|
return;
|
|
|
|
if (avci->buffer_count)
|
|
av_log(s, AV_LOG_WARNING, "Found %i unreleased buffers!\n",
|
|
avci->buffer_count);
|
|
for (i = 0; i < INTERNAL_BUFFER_SIZE; i++) {
|
|
InternalBuffer *buf = &avci->buffer[i];
|
|
for (j = 0; j < 4; j++) {
|
|
av_freep(&buf->base[j]);
|
|
buf->data[j] = NULL;
|
|
}
|
|
}
|
|
av_freep(&avci->buffer);
|
|
|
|
avci->buffer_count = 0;
|
|
}
|
|
|
|
static void audio_free_buffers(AVCodecContext *avctx)
|
|
{
|
|
AVCodecInternal *avci = avctx->internal;
|
|
av_freep(&avci->audio_data);
|
|
}
|
|
|
|
void avcodec_default_free_buffers(AVCodecContext *avctx)
|
|
{
|
|
switch (avctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
video_free_buffers(avctx);
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
audio_free_buffers(avctx);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
|
|
{
|
|
switch (codec_id) {
|
|
case AV_CODEC_ID_8SVX_EXP:
|
|
case AV_CODEC_ID_8SVX_FIB:
|
|
case AV_CODEC_ID_ADPCM_CT:
|
|
case AV_CODEC_ID_ADPCM_IMA_APC:
|
|
case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
|
|
case AV_CODEC_ID_ADPCM_IMA_OKI:
|
|
case AV_CODEC_ID_ADPCM_IMA_WS:
|
|
case AV_CODEC_ID_ADPCM_G722:
|
|
case AV_CODEC_ID_ADPCM_YAMAHA:
|
|
return 4;
|
|
case AV_CODEC_ID_PCM_ALAW:
|
|
case AV_CODEC_ID_PCM_MULAW:
|
|
case AV_CODEC_ID_PCM_S8:
|
|
case AV_CODEC_ID_PCM_S8_PLANAR:
|
|
case AV_CODEC_ID_PCM_U8:
|
|
case AV_CODEC_ID_PCM_ZORK:
|
|
return 8;
|
|
case AV_CODEC_ID_PCM_S16BE:
|
|
case AV_CODEC_ID_PCM_S16BE_PLANAR:
|
|
case AV_CODEC_ID_PCM_S16LE:
|
|
case AV_CODEC_ID_PCM_S16LE_PLANAR:
|
|
case AV_CODEC_ID_PCM_U16BE:
|
|
case AV_CODEC_ID_PCM_U16LE:
|
|
return 16;
|
|
case AV_CODEC_ID_PCM_S24DAUD:
|
|
case AV_CODEC_ID_PCM_S24BE:
|
|
case AV_CODEC_ID_PCM_S24LE:
|
|
case AV_CODEC_ID_PCM_S24LE_PLANAR:
|
|
case AV_CODEC_ID_PCM_U24BE:
|
|
case AV_CODEC_ID_PCM_U24LE:
|
|
return 24;
|
|
case AV_CODEC_ID_PCM_S32BE:
|
|
case AV_CODEC_ID_PCM_S32LE:
|
|
case AV_CODEC_ID_PCM_S32LE_PLANAR:
|
|
case AV_CODEC_ID_PCM_U32BE:
|
|
case AV_CODEC_ID_PCM_U32LE:
|
|
case AV_CODEC_ID_PCM_F32BE:
|
|
case AV_CODEC_ID_PCM_F32LE:
|
|
return 32;
|
|
case AV_CODEC_ID_PCM_F64BE:
|
|
case AV_CODEC_ID_PCM_F64LE:
|
|
return 64;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
|
|
{
|
|
static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = {
|
|
[AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
|
|
[AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
|
|
[AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
|
|
[AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
|
|
[AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
|
|
[AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 },
|
|
[AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
|
|
[AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
|
|
[AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
|
|
[AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
|
|
};
|
|
if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB)
|
|
return AV_CODEC_ID_NONE;
|
|
if (be < 0 || be > 1)
|
|
be = AV_NE(1, 0);
|
|
return map[fmt][be];
|
|
}
|
|
|
|
int av_get_bits_per_sample(enum AVCodecID codec_id)
|
|
{
|
|
switch (codec_id) {
|
|
case AV_CODEC_ID_ADPCM_SBPRO_2:
|
|
return 2;
|
|
case AV_CODEC_ID_ADPCM_SBPRO_3:
|
|
return 3;
|
|
case AV_CODEC_ID_ADPCM_SBPRO_4:
|
|
case AV_CODEC_ID_ADPCM_IMA_WAV:
|
|
case AV_CODEC_ID_ADPCM_IMA_QT:
|
|
case AV_CODEC_ID_ADPCM_SWF:
|
|
case AV_CODEC_ID_ADPCM_MS:
|
|
return 4;
|
|
default:
|
|
return av_get_exact_bits_per_sample(codec_id);
|
|
}
|
|
}
|
|
|
|
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
|
|
{
|
|
int id, sr, ch, ba, tag, bps;
|
|
|
|
id = avctx->codec_id;
|
|
sr = avctx->sample_rate;
|
|
ch = avctx->channels;
|
|
ba = avctx->block_align;
|
|
tag = avctx->codec_tag;
|
|
bps = av_get_exact_bits_per_sample(avctx->codec_id);
|
|
|
|
/* codecs with an exact constant bits per sample */
|
|
if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768)
|
|
return (frame_bytes * 8LL) / (bps * ch);
|
|
bps = avctx->bits_per_coded_sample;
|
|
|
|
/* codecs with a fixed packet duration */
|
|
switch (id) {
|
|
case AV_CODEC_ID_ADPCM_ADX: return 32;
|
|
case AV_CODEC_ID_ADPCM_IMA_QT: return 64;
|
|
case AV_CODEC_ID_ADPCM_EA_XAS: return 128;
|
|
case AV_CODEC_ID_AMR_NB:
|
|
case AV_CODEC_ID_GSM:
|
|
case AV_CODEC_ID_QCELP:
|
|
case AV_CODEC_ID_RA_288: return 160;
|
|
case AV_CODEC_ID_AMR_WB:
|
|
case AV_CODEC_ID_GSM_MS: return 320;
|
|
case AV_CODEC_ID_MP1: return 384;
|
|
case AV_CODEC_ID_ATRAC1: return 512;
|
|
case AV_CODEC_ID_ATRAC3: return 1024;
|
|
case AV_CODEC_ID_MP2:
|
|
case AV_CODEC_ID_MUSEPACK7: return 1152;
|
|
case AV_CODEC_ID_AC3: return 1536;
|
|
}
|
|
|
|
if (sr > 0) {
|
|
/* calc from sample rate */
|
|
if (id == AV_CODEC_ID_TTA)
|
|
return 256 * sr / 245;
|
|
|
|
if (ch > 0) {
|
|
/* calc from sample rate and channels */
|
|
if (id == AV_CODEC_ID_BINKAUDIO_DCT)
|
|
return (480 << (sr / 22050)) / ch;
|
|
}
|
|
}
|
|
|
|
if (ba > 0) {
|
|
/* calc from block_align */
|
|
if (id == AV_CODEC_ID_SIPR) {
|
|
switch (ba) {
|
|
case 20: return 160;
|
|
case 19: return 144;
|
|
case 29: return 288;
|
|
case 37: return 480;
|
|
}
|
|
} else if (id == AV_CODEC_ID_ILBC) {
|
|
switch (ba) {
|
|
case 38: return 160;
|
|
case 50: return 240;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (frame_bytes > 0) {
|
|
/* calc from frame_bytes only */
|
|
if (id == AV_CODEC_ID_TRUESPEECH)
|
|
return 240 * (frame_bytes / 32);
|
|
if (id == AV_CODEC_ID_NELLYMOSER)
|
|
return 256 * (frame_bytes / 64);
|
|
if (id == AV_CODEC_ID_RA_144)
|
|
return 160 * (frame_bytes / 20);
|
|
if (id == AV_CODEC_ID_G723_1)
|
|
return 240 * (frame_bytes / 24);
|
|
|
|
if (bps > 0) {
|
|
/* calc from frame_bytes and bits_per_coded_sample */
|
|
if (id == AV_CODEC_ID_ADPCM_G726)
|
|
return frame_bytes * 8 / bps;
|
|
}
|
|
|
|
if (ch > 0) {
|
|
/* calc from frame_bytes and channels */
|
|
switch (id) {
|
|
case AV_CODEC_ID_ADPCM_AFC:
|
|
return frame_bytes / (9 * ch) * 16;
|
|
case AV_CODEC_ID_ADPCM_4XM:
|
|
case AV_CODEC_ID_ADPCM_IMA_ISS:
|
|
return (frame_bytes - 4 * ch) * 2 / ch;
|
|
case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
|
|
return (frame_bytes - 4) * 2 / ch;
|
|
case AV_CODEC_ID_ADPCM_IMA_AMV:
|
|
return (frame_bytes - 8) * 2 / ch;
|
|
case AV_CODEC_ID_ADPCM_XA:
|
|
return (frame_bytes / 128) * 224 / ch;
|
|
case AV_CODEC_ID_INTERPLAY_DPCM:
|
|
return (frame_bytes - 6 - ch) / ch;
|
|
case AV_CODEC_ID_ROQ_DPCM:
|
|
return (frame_bytes - 8) / ch;
|
|
case AV_CODEC_ID_XAN_DPCM:
|
|
return (frame_bytes - 2 * ch) / ch;
|
|
case AV_CODEC_ID_MACE3:
|
|
return 3 * frame_bytes / ch;
|
|
case AV_CODEC_ID_MACE6:
|
|
return 6 * frame_bytes / ch;
|
|
case AV_CODEC_ID_PCM_LXF:
|
|
return 2 * (frame_bytes / (5 * ch));
|
|
case AV_CODEC_ID_IAC:
|
|
case AV_CODEC_ID_IMC:
|
|
return 4 * frame_bytes / ch;
|
|
}
|
|
|
|
if (tag) {
|
|
/* calc from frame_bytes, channels, and codec_tag */
|
|
if (id == AV_CODEC_ID_SOL_DPCM) {
|
|
if (tag == 3)
|
|
return frame_bytes / ch;
|
|
else
|
|
return frame_bytes * 2 / ch;
|
|
}
|
|
}
|
|
|
|
if (ba > 0) {
|
|
/* calc from frame_bytes, channels, and block_align */
|
|
int blocks = frame_bytes / ba;
|
|
switch (avctx->codec_id) {
|
|
case AV_CODEC_ID_ADPCM_IMA_WAV:
|
|
return blocks * (1 + (ba - 4 * ch) / (4 * ch) * 8);
|
|
case AV_CODEC_ID_ADPCM_IMA_DK3:
|
|
return blocks * (((ba - 16) * 2 / 3 * 4) / ch);
|
|
case AV_CODEC_ID_ADPCM_IMA_DK4:
|
|
return blocks * (1 + (ba - 4 * ch) * 2 / ch);
|
|
case AV_CODEC_ID_ADPCM_MS:
|
|
return blocks * (2 + (ba - 7 * ch) * 2 / ch);
|
|
}
|
|
}
|
|
|
|
if (bps > 0) {
|
|
/* calc from frame_bytes, channels, and bits_per_coded_sample */
|
|
switch (avctx->codec_id) {
|
|
case AV_CODEC_ID_PCM_DVD:
|
|
if(bps<4)
|
|
return 0;
|
|
return 2 * (frame_bytes / ((bps * 2 / 8) * ch));
|
|
case AV_CODEC_ID_PCM_BLURAY:
|
|
if(bps<4)
|
|
return 0;
|
|
return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8);
|
|
case AV_CODEC_ID_S302M:
|
|
return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if !HAVE_THREADS
|
|
int ff_thread_init(AVCodecContext *s)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
#endif
|
|
|
|
unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
|
|
{
|
|
unsigned int n = 0;
|
|
|
|
while (v >= 0xff) {
|
|
*s++ = 0xff;
|
|
v -= 0xff;
|
|
n++;
|
|
}
|
|
*s = v;
|
|
n++;
|
|
return n;
|
|
}
|
|
|
|
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
|
|
{
|
|
int i;
|
|
for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ;
|
|
return i;
|
|
}
|
|
|
|
void av_log_missing_feature(void *avc, const char *feature, int want_sample)
|
|
{
|
|
av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg "
|
|
"version to the newest one from Git. If the problem still "
|
|
"occurs, it means that your file has a feature which has not "
|
|
"been implemented.\n", feature);
|
|
if(want_sample)
|
|
av_log_ask_for_sample(avc, NULL);
|
|
}
|
|
|
|
void av_log_ask_for_sample(void *avc, const char *msg, ...)
|
|
{
|
|
va_list argument_list;
|
|
|
|
va_start(argument_list, msg);
|
|
|
|
if (msg)
|
|
av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
|
|
av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
|
|
"of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
|
|
"and contact the ffmpeg-devel mailing list.\n");
|
|
|
|
va_end(argument_list);
|
|
}
|
|
|
|
static AVHWAccel *first_hwaccel = NULL;
|
|
|
|
void av_register_hwaccel(AVHWAccel *hwaccel)
|
|
{
|
|
AVHWAccel **p = &first_hwaccel;
|
|
while (*p)
|
|
p = &(*p)->next;
|
|
*p = hwaccel;
|
|
hwaccel->next = NULL;
|
|
}
|
|
|
|
AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel)
|
|
{
|
|
return hwaccel ? hwaccel->next : first_hwaccel;
|
|
}
|
|
|
|
AVHWAccel *ff_find_hwaccel(enum AVCodecID codec_id, enum AVPixelFormat pix_fmt)
|
|
{
|
|
AVHWAccel *hwaccel = NULL;
|
|
|
|
while ((hwaccel = av_hwaccel_next(hwaccel)))
|
|
if (hwaccel->id == codec_id
|
|
&& hwaccel->pix_fmt == pix_fmt)
|
|
return hwaccel;
|
|
return NULL;
|
|
}
|
|
|
|
int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
|
|
{
|
|
if (ff_lockmgr_cb) {
|
|
if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY))
|
|
return -1;
|
|
if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY))
|
|
return -1;
|
|
}
|
|
|
|
ff_lockmgr_cb = cb;
|
|
|
|
if (ff_lockmgr_cb) {
|
|
if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE))
|
|
return -1;
|
|
if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int ff_lock_avcodec(AVCodecContext *log_ctx)
|
|
{
|
|
if (ff_lockmgr_cb) {
|
|
if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
|
|
return -1;
|
|
}
|
|
entangled_thread_counter++;
|
|
if (entangled_thread_counter != 1) {
|
|
av_log(log_ctx, AV_LOG_ERROR, "Insufficient thread locking around avcodec_open/close()\n");
|
|
ff_avcodec_locked = 1;
|
|
ff_unlock_avcodec();
|
|
return AVERROR(EINVAL);
|
|
}
|
|
av_assert0(!ff_avcodec_locked);
|
|
ff_avcodec_locked = 1;
|
|
return 0;
|
|
}
|
|
|
|
int ff_unlock_avcodec(void)
|
|
{
|
|
av_assert0(ff_avcodec_locked);
|
|
ff_avcodec_locked = 0;
|
|
entangled_thread_counter--;
|
|
if (ff_lockmgr_cb) {
|
|
if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int avpriv_lock_avformat(void)
|
|
{
|
|
if (ff_lockmgr_cb) {
|
|
if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int avpriv_unlock_avformat(void)
|
|
{
|
|
if (ff_lockmgr_cb) {
|
|
if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE))
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
unsigned int avpriv_toupper4(unsigned int x)
|
|
{
|
|
return toupper(x & 0xFF)
|
|
+ (toupper((x >> 8) & 0xFF) << 8)
|
|
+ (toupper((x >> 16) & 0xFF) << 16)
|
|
+ (toupper((x >> 24) & 0xFF) << 24);
|
|
}
|
|
|
|
#if !HAVE_THREADS
|
|
|
|
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
|
|
{
|
|
f->owner = avctx;
|
|
|
|
return ff_get_buffer(avctx, f);
|
|
}
|
|
|
|
void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
|
|
{
|
|
f->owner->release_buffer(f->owner, f);
|
|
}
|
|
|
|
void ff_thread_finish_setup(AVCodecContext *avctx)
|
|
{
|
|
}
|
|
|
|
void ff_thread_report_progress(AVFrame *f, int progress, int field)
|
|
{
|
|
}
|
|
|
|
void ff_thread_await_progress(AVFrame *f, int progress, int field)
|
|
{
|
|
}
|
|
|
|
int ff_thread_can_start_frame(AVCodecContext *avctx)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
#endif
|
|
|
|
enum AVMediaType avcodec_get_type(enum AVCodecID codec_id)
|
|
{
|
|
AVCodec *c= avcodec_find_decoder(codec_id);
|
|
if(!c)
|
|
c= avcodec_find_encoder(codec_id);
|
|
if(c)
|
|
return c->type;
|
|
|
|
if (codec_id <= AV_CODEC_ID_NONE)
|
|
return AVMEDIA_TYPE_UNKNOWN;
|
|
else if (codec_id < AV_CODEC_ID_FIRST_AUDIO)
|
|
return AVMEDIA_TYPE_VIDEO;
|
|
else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE)
|
|
return AVMEDIA_TYPE_AUDIO;
|
|
else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN)
|
|
return AVMEDIA_TYPE_SUBTITLE;
|
|
|
|
return AVMEDIA_TYPE_UNKNOWN;
|
|
}
|
|
|
|
int avcodec_is_open(AVCodecContext *s)
|
|
{
|
|
return !!s->internal;
|
|
}
|