mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
5c7313c740
Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
1134 lines
34 KiB
C
1134 lines
34 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 "config.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mem_internal.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/pixfmt.h"
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#include "avcodec.h"
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#include "codec.h"
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#include "hwconfig.h"
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#include "thread.h"
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#include "internal.h"
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#include "put_bits.h"
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#include "raw.h"
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#include "version.h"
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdatomic.h>
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#include <limits.h>
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#include <float.h>
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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 - AV_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 + AV_INPUT_BUFFER_PADDING_SIZE, 1))
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memset(*p + min_size, 0, AV_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 - AV_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 + AV_INPUT_BUFFER_PADDING_SIZE, 1))
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memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
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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 || codec->receive_packet);
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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 || codec->receive_frame);
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}
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int ff_set_dimensions(AVCodecContext *s, int width, int height)
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{
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int ret = av_image_check_size2(width, height, s->max_pixels, AV_PIX_FMT_NONE, 0, s);
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if (ret < 0)
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width = height = 0;
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s->coded_width = width;
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s->coded_height = height;
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s->width = AV_CEIL_RSHIFT(width, s->lowres);
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s->height = AV_CEIL_RSHIFT(height, s->lowres);
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return ret;
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}
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int ff_set_sar(AVCodecContext *avctx, AVRational sar)
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{
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int ret = av_image_check_sar(avctx->width, avctx->height, sar);
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if (ret < 0) {
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av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
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sar.num, sar.den);
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avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
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return ret;
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} else {
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avctx->sample_aspect_ratio = sar;
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}
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return 0;
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}
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int ff_side_data_update_matrix_encoding(AVFrame *frame,
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enum AVMatrixEncoding matrix_encoding)
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{
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AVFrameSideData *side_data;
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enum AVMatrixEncoding *data;
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side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING);
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if (!side_data)
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side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING,
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sizeof(enum AVMatrixEncoding));
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if (!side_data)
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return AVERROR(ENOMEM);
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data = (enum AVMatrixEncoding*)side_data->data;
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*data = matrix_encoding;
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return 0;
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}
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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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AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
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if (desc) {
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w_align = 1 << desc->log2_chroma_w;
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h_align = 1 << desc->log2_chroma_h;
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}
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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_YVYU422:
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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_GBRAP:
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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_YUV420P16LE:
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case AV_PIX_FMT_YUV420P16BE:
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case AV_PIX_FMT_YUVA420P9LE:
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case AV_PIX_FMT_YUVA420P9BE:
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case AV_PIX_FMT_YUVA420P10LE:
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case AV_PIX_FMT_YUVA420P10BE:
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case AV_PIX_FMT_YUVA420P16LE:
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case AV_PIX_FMT_YUVA420P16BE:
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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_YUV422P16LE:
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case AV_PIX_FMT_YUV422P16BE:
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case AV_PIX_FMT_YUVA422P9LE:
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case AV_PIX_FMT_YUVA422P9BE:
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case AV_PIX_FMT_YUVA422P10LE:
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case AV_PIX_FMT_YUVA422P10BE:
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case AV_PIX_FMT_YUVA422P12LE:
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case AV_PIX_FMT_YUVA422P12BE:
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case AV_PIX_FMT_YUVA422P16LE:
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case AV_PIX_FMT_YUVA422P16BE:
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case AV_PIX_FMT_YUV440P10LE:
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case AV_PIX_FMT_YUV440P10BE:
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case AV_PIX_FMT_YUV440P12LE:
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case AV_PIX_FMT_YUV440P12BE:
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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_YUV444P16LE:
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case AV_PIX_FMT_YUV444P16BE:
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case AV_PIX_FMT_YUVA444P9LE:
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case AV_PIX_FMT_YUVA444P9BE:
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case AV_PIX_FMT_YUVA444P10LE:
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case AV_PIX_FMT_YUVA444P10BE:
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case AV_PIX_FMT_YUVA444P12LE:
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case AV_PIX_FMT_YUVA444P12BE:
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case AV_PIX_FMT_YUVA444P16LE:
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case AV_PIX_FMT_YUVA444P16BE:
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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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case AV_PIX_FMT_GBRP16LE:
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case AV_PIX_FMT_GBRP16BE:
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case AV_PIX_FMT_GBRAP12LE:
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case AV_PIX_FMT_GBRAP12BE:
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case AV_PIX_FMT_GBRAP16LE:
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case AV_PIX_FMT_GBRAP16BE:
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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_YUVJ411P:
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case AV_PIX_FMT_UYYVYY411:
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w_align = 32;
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h_align = 16 * 2;
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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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if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
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w_align = 8;
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h_align = 8;
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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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s->codec_id == AV_CODEC_ID_CINEPAK) {
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w_align = 4;
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h_align = 4;
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}
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if (s->codec_id == AV_CODEC_ID_JV ||
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s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
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w_align = 8;
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h_align = 8;
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}
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if (s->codec_id == AV_CODEC_ID_MJPEG ||
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s->codec_id == AV_CODEC_ID_MJPEGB ||
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s->codec_id == AV_CODEC_ID_LJPEG ||
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s->codec_id == AV_CODEC_ID_SMVJPEG ||
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s->codec_id == AV_CODEC_ID_AMV ||
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s->codec_id == AV_CODEC_ID_SP5X ||
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s->codec_id == AV_CODEC_ID_JPEGLS) {
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w_align = 8;
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h_align = 2*8;
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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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case AV_PIX_FMT_RGB24:
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if (s->codec_id == AV_CODEC_ID_CINEPAK) {
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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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break;
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}
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if (s->codec_id == AV_CODEC_ID_IFF_ILBM) {
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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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s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 ||
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s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A
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) {
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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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// H.264 uses edge emulation for out of frame motion vectors, for this
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// it requires a temporary area large enough to hold a 21x21 block,
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// increasing witdth ensure that the temporary area is large enough,
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// the next rounded up width is 32
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*width = FFMAX(*width, 32);
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}
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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_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos)
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{
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if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB)
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return AVERROR(EINVAL);
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pos--;
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*xpos = (pos&1) * 128;
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*ypos = ((pos>>1)^(pos<4)) * 128;
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return 0;
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}
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enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos)
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{
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int pos, xout, yout;
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for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) {
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if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos)
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return pos;
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}
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return AVCHROMA_LOC_UNSPECIFIED;
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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_array(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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|
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void ff_color_frame(AVFrame *frame, const int c[4])
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
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int p, y;
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av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
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for (p = 0; p<desc->nb_components; p++) {
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uint8_t *dst = frame->data[p];
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int is_chroma = p == 1 || p == 2;
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int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width;
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int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height;
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if (desc->comp[0].depth >= 9) {
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((uint16_t*)dst)[0] = c[p];
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av_memcpy_backptr(dst + 2, 2, bytes - 2);
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dst += frame->linesize[p];
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for (y = 1; y < height; y++) {
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memcpy(dst, frame->data[p], 2*bytes);
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dst += frame->linesize[p];
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}
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} else {
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for (y = 0; y < height; y++) {
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memset(dst, c[p], bytes);
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dst += frame->linesize[p];
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}
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}
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}
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}
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|
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enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
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unsigned int fourcc)
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{
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while (tags->pix_fmt >= 0) {
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if (tags->fourcc == fourcc)
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return tags->pix_fmt;
|
|
tags++;
|
|
}
|
|
return AV_PIX_FMT_NONE;
|
|
}
|
|
|
|
int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
|
|
return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
|
|
}
|
|
|
|
const char *avcodec_get_name(enum AVCodecID id)
|
|
{
|
|
const AVCodecDescriptor *cd;
|
|
const 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";
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
const char *avcodec_profile_name(enum AVCodecID codec_id, int profile)
|
|
{
|
|
const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
|
|
const AVProfile *p;
|
|
|
|
if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles)
|
|
return NULL;
|
|
|
|
for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++)
|
|
if (p->profile == profile)
|
|
return p->name;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
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_ARGO:
|
|
case AV_CODEC_ID_ADPCM_CT:
|
|
case AV_CODEC_ID_ADPCM_IMA_ALP:
|
|
case AV_CODEC_ID_ADPCM_IMA_AMV:
|
|
case AV_CODEC_ID_ADPCM_IMA_APC:
|
|
case AV_CODEC_ID_ADPCM_IMA_APM:
|
|
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_IMA_SSI:
|
|
case AV_CODEC_ID_ADPCM_G722:
|
|
case AV_CODEC_ID_ADPCM_YAMAHA:
|
|
case AV_CODEC_ID_ADPCM_AICA:
|
|
return 4;
|
|
case AV_CODEC_ID_DSD_LSBF:
|
|
case AV_CODEC_ID_DSD_MSBF:
|
|
case AV_CODEC_ID_DSD_LSBF_PLANAR:
|
|
case AV_CODEC_ID_DSD_MSBF_PLANAR:
|
|
case AV_CODEC_ID_PCM_ALAW:
|
|
case AV_CODEC_ID_PCM_MULAW:
|
|
case AV_CODEC_ID_PCM_VIDC:
|
|
case AV_CODEC_ID_PCM_S8:
|
|
case AV_CODEC_ID_PCM_S8_PLANAR:
|
|
case AV_CODEC_ID_PCM_SGA:
|
|
case AV_CODEC_ID_PCM_U8:
|
|
case AV_CODEC_ID_SDX2_DPCM:
|
|
case AV_CODEC_ID_DERF_DPCM:
|
|
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:
|
|
case AV_CODEC_ID_PCM_F24LE:
|
|
case AV_CODEC_ID_PCM_F16LE:
|
|
return 32;
|
|
case AV_CODEC_ID_PCM_F64BE:
|
|
case AV_CODEC_ID_PCM_F64LE:
|
|
case AV_CODEC_ID_PCM_S64BE:
|
|
case AV_CODEC_ID_PCM_S64LE:
|
|
return 64;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
|
|
{
|
|
static const enum AVCodecID map[][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_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
|
|
[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 >= FF_ARRAY_ELEMS(map))
|
|
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);
|
|
}
|
|
}
|
|
|
|
static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
|
|
uint32_t tag, int bits_per_coded_sample, int64_t bitrate,
|
|
uint8_t * extradata, int frame_size, int frame_bytes)
|
|
{
|
|
int bps = av_get_exact_bits_per_sample(id);
|
|
int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1;
|
|
|
|
/* 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 = 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_EVRC:
|
|
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_ATRAC9:
|
|
case AV_CODEC_ID_ATRAC3:
|
|
if (framecount > INT_MAX/1024)
|
|
return 0;
|
|
return 1024 * framecount;
|
|
case AV_CODEC_ID_ATRAC3P: return 2048;
|
|
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;
|
|
else if (id == AV_CODEC_ID_DST)
|
|
return 588 * sr / 44100;
|
|
else if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
|
|
if (sr / 22050 > 22)
|
|
return 0;
|
|
return (480 << (sr / 22050));
|
|
}
|
|
|
|
if (id == AV_CODEC_ID_MP3)
|
|
return sr <= 24000 ? 576 : 1152;
|
|
}
|
|
|
|
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 (bps > 0) {
|
|
/* calc from frame_bytes and bits_per_coded_sample */
|
|
if (id == AV_CODEC_ID_ADPCM_G726 || id == AV_CODEC_ID_ADPCM_G726LE)
|
|
return frame_bytes * 8 / bps;
|
|
}
|
|
|
|
if (ch > 0 && ch < INT_MAX/16) {
|
|
/* calc from frame_bytes and channels */
|
|
switch (id) {
|
|
case AV_CODEC_ID_FASTAUDIO:
|
|
return frame_bytes / (40 * ch) * 256;
|
|
case AV_CODEC_ID_ADPCM_IMA_MOFLEX:
|
|
return (frame_bytes - 4 * ch) / (128 * ch) * 256;
|
|
case AV_CODEC_ID_ADPCM_AFC:
|
|
return frame_bytes / (9 * ch) * 16;
|
|
case AV_CODEC_ID_ADPCM_PSX:
|
|
case AV_CODEC_ID_ADPCM_DTK:
|
|
frame_bytes /= 16 * ch;
|
|
if (frame_bytes > INT_MAX / 28)
|
|
return 0;
|
|
return frame_bytes * 28;
|
|
case AV_CODEC_ID_ADPCM_4XM:
|
|
case AV_CODEC_ID_ADPCM_IMA_ACORN:
|
|
case AV_CODEC_ID_ADPCM_IMA_DAT4:
|
|
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;
|
|
case AV_CODEC_ID_ADPCM_THP:
|
|
case AV_CODEC_ID_ADPCM_THP_LE:
|
|
if (extradata)
|
|
return frame_bytes * 14 / (8 * ch);
|
|
break;
|
|
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;
|
|
int64_t tmp;
|
|
switch (id) {
|
|
case AV_CODEC_ID_ADPCM_IMA_WAV:
|
|
if (bps < 2 || bps > 5)
|
|
return 0;
|
|
tmp = blocks * (1LL + (ba - 4 * ch) / (bps * ch) * 8);
|
|
if (tmp != (int)tmp)
|
|
return 0;
|
|
return tmp;
|
|
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_IMA_RAD:
|
|
return blocks * ((ba - 4 * ch) * 2 / ch);
|
|
case AV_CODEC_ID_ADPCM_MS:
|
|
return blocks * (2 + (ba - 7 * ch) * 2LL / ch);
|
|
case AV_CODEC_ID_ADPCM_MTAF:
|
|
return blocks * (ba - 16) * 2 / ch;
|
|
}
|
|
}
|
|
|
|
if (bps > 0) {
|
|
/* calc from frame_bytes, channels, and bits_per_coded_sample */
|
|
switch (id) {
|
|
case AV_CODEC_ID_PCM_DVD:
|
|
if(bps<4 || frame_bytes<3)
|
|
return 0;
|
|
return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch));
|
|
case AV_CODEC_ID_PCM_BLURAY:
|
|
if(bps<4 || frame_bytes<4)
|
|
return 0;
|
|
return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8);
|
|
case AV_CODEC_ID_S302M:
|
|
return 2 * (frame_bytes / ((bps + 4) / 4)) / ch;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Fall back on using frame_size */
|
|
if (frame_size > 1 && frame_bytes)
|
|
return frame_size;
|
|
|
|
//For WMA we currently have no other means to calculate duration thus we
|
|
//do it here by assuming CBR, which is true for all known cases.
|
|
if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) {
|
|
if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2)
|
|
return (frame_bytes * 8LL * sr) / bitrate;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
|
|
{
|
|
return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate,
|
|
avctx->channels, avctx->block_align,
|
|
avctx->codec_tag, avctx->bits_per_coded_sample,
|
|
avctx->bit_rate, avctx->extradata, avctx->frame_size,
|
|
frame_bytes);
|
|
}
|
|
|
|
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes)
|
|
{
|
|
return get_audio_frame_duration(par->codec_id, par->sample_rate,
|
|
par->channels, par->block_align,
|
|
par->codec_tag, par->bits_per_coded_sample,
|
|
par->bit_rate, par->extradata, par->frame_size,
|
|
frame_bytes);
|
|
}
|
|
|
|
#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;
|
|
}
|
|
|
|
const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index)
|
|
{
|
|
int i;
|
|
if (!codec->hw_configs || index < 0)
|
|
return NULL;
|
|
for (i = 0; i <= index; i++)
|
|
if (!codec->hw_configs[i])
|
|
return NULL;
|
|
return &codec->hw_configs[index]->public;
|
|
}
|
|
|
|
unsigned int avpriv_toupper4(unsigned int x)
|
|
{
|
|
return av_toupper(x & 0xFF) +
|
|
(av_toupper((x >> 8) & 0xFF) << 8) +
|
|
(av_toupper((x >> 16) & 0xFF) << 16) +
|
|
((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
|
|
}
|
|
|
|
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src)
|
|
{
|
|
int ret;
|
|
|
|
dst->owner[0] = src->owner[0];
|
|
dst->owner[1] = src->owner[1];
|
|
|
|
ret = av_frame_ref(dst->f, src->f);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
av_assert0(!dst->progress);
|
|
|
|
if (src->progress &&
|
|
!(dst->progress = av_buffer_ref(src->progress))) {
|
|
ff_thread_release_buffer(dst->owner[0], dst);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if !HAVE_THREADS
|
|
|
|
enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
|
|
{
|
|
return ff_get_format(avctx, fmt);
|
|
}
|
|
|
|
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
|
|
{
|
|
f->owner[0] = f->owner[1] = avctx;
|
|
return ff_get_buffer(avctx, f->f, flags);
|
|
}
|
|
|
|
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
|
|
{
|
|
if (f->f)
|
|
av_frame_unref(f->f);
|
|
}
|
|
|
|
void ff_thread_finish_setup(AVCodecContext *avctx)
|
|
{
|
|
}
|
|
|
|
void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
|
|
{
|
|
}
|
|
|
|
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
|
|
{
|
|
}
|
|
|
|
int ff_thread_can_start_frame(AVCodecContext *avctx)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
int ff_alloc_entries(AVCodecContext *avctx, int count)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void ff_reset_entries(AVCodecContext *avctx)
|
|
{
|
|
}
|
|
|
|
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
|
|
{
|
|
}
|
|
|
|
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p,
|
|
const uint8_t *end,
|
|
uint32_t *av_restrict state)
|
|
{
|
|
int i;
|
|
|
|
av_assert0(p <= end);
|
|
if (p >= end)
|
|
return end;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
uint32_t tmp = *state << 8;
|
|
*state = tmp + *(p++);
|
|
if (tmp == 0x100 || p == end)
|
|
return p;
|
|
}
|
|
|
|
while (p < end) {
|
|
if (p[-1] > 1 ) p += 3;
|
|
else if (p[-2] ) p += 2;
|
|
else if (p[-3]|(p[-1]-1)) p++;
|
|
else {
|
|
p++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
p = FFMIN(p, end) - 4;
|
|
*state = AV_RB32(p);
|
|
|
|
return p + 4;
|
|
}
|
|
|
|
AVCPBProperties *av_cpb_properties_alloc(size_t *size)
|
|
{
|
|
AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties));
|
|
if (!props)
|
|
return NULL;
|
|
|
|
if (size)
|
|
*size = sizeof(*props);
|
|
|
|
props->vbv_delay = UINT64_MAX;
|
|
|
|
return props;
|
|
}
|
|
|
|
AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx)
|
|
{
|
|
AVPacketSideData *tmp;
|
|
AVCPBProperties *props;
|
|
size_t size;
|
|
int i;
|
|
|
|
for (i = 0; i < avctx->nb_coded_side_data; i++)
|
|
if (avctx->coded_side_data[i].type == AV_PKT_DATA_CPB_PROPERTIES)
|
|
return (AVCPBProperties *)avctx->coded_side_data[i].data;
|
|
|
|
props = av_cpb_properties_alloc(&size);
|
|
if (!props)
|
|
return NULL;
|
|
|
|
tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp));
|
|
if (!tmp) {
|
|
av_freep(&props);
|
|
return NULL;
|
|
}
|
|
|
|
avctx->coded_side_data = tmp;
|
|
avctx->nb_coded_side_data++;
|
|
|
|
avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES;
|
|
avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props;
|
|
avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size;
|
|
|
|
return props;
|
|
}
|
|
|
|
static unsigned bcd2uint(uint8_t bcd)
|
|
{
|
|
unsigned low = bcd & 0xf;
|
|
unsigned high = bcd >> 4;
|
|
if (low > 9 || high > 9)
|
|
return 0;
|
|
return low + 10*high;
|
|
}
|
|
|
|
int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len,
|
|
void **data, size_t *sei_size)
|
|
{
|
|
AVFrameSideData *sd = NULL;
|
|
uint8_t *sei_data;
|
|
PutBitContext pb;
|
|
uint32_t *tc;
|
|
int m;
|
|
|
|
if (frame)
|
|
sd = av_frame_get_side_data(frame, AV_FRAME_DATA_S12M_TIMECODE);
|
|
|
|
if (!sd) {
|
|
*data = NULL;
|
|
return 0;
|
|
}
|
|
tc = (uint32_t*)sd->data;
|
|
m = tc[0] & 3;
|
|
|
|
*sei_size = sizeof(uint32_t) * 4;
|
|
*data = av_mallocz(*sei_size + prefix_len);
|
|
if (!*data)
|
|
return AVERROR(ENOMEM);
|
|
sei_data = (uint8_t*)*data + prefix_len;
|
|
|
|
init_put_bits(&pb, sei_data, *sei_size);
|
|
put_bits(&pb, 2, m); // num_clock_ts
|
|
|
|
for (int j = 1; j <= m; j++) {
|
|
uint32_t tcsmpte = tc[j];
|
|
unsigned hh = bcd2uint(tcsmpte & 0x3f); // 6-bit hours
|
|
unsigned mm = bcd2uint(tcsmpte>>8 & 0x7f); // 7-bit minutes
|
|
unsigned ss = bcd2uint(tcsmpte>>16 & 0x7f); // 7-bit seconds
|
|
unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames
|
|
unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit
|
|
|
|
/* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */
|
|
if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
|
|
unsigned pc;
|
|
ff *= 2;
|
|
if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
|
|
pc = !!(tcsmpte & 1 << 7);
|
|
else
|
|
pc = !!(tcsmpte & 1 << 23);
|
|
ff = (ff + pc) & 0x7f;
|
|
}
|
|
|
|
put_bits(&pb, 1, 1); // clock_timestamp_flag
|
|
put_bits(&pb, 1, 1); // units_field_based_flag
|
|
put_bits(&pb, 5, 0); // counting_type
|
|
put_bits(&pb, 1, 1); // full_timestamp_flag
|
|
put_bits(&pb, 1, 0); // discontinuity_flag
|
|
put_bits(&pb, 1, drop);
|
|
put_bits(&pb, 9, ff);
|
|
put_bits(&pb, 6, ss);
|
|
put_bits(&pb, 6, mm);
|
|
put_bits(&pb, 5, hh);
|
|
put_bits(&pb, 5, 0);
|
|
}
|
|
flush_put_bits(&pb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
|
|
{
|
|
AVRational framerate = avctx->framerate;
|
|
int bits_per_coded_sample = avctx->bits_per_coded_sample;
|
|
int64_t bitrate;
|
|
|
|
if (!(framerate.num && framerate.den))
|
|
framerate = av_inv_q(avctx->time_base);
|
|
if (!(framerate.num && framerate.den))
|
|
return 0;
|
|
|
|
if (!bits_per_coded_sample) {
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
|
|
bits_per_coded_sample = av_get_bits_per_pixel(desc);
|
|
}
|
|
bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height *
|
|
framerate.num / framerate.den;
|
|
|
|
return bitrate;
|
|
}
|
|
|
|
int ff_int_from_list_or_default(void *ctx, const char * val_name, int val,
|
|
const int * array_valid_values, int default_value)
|
|
{
|
|
int i = 0, ref_val;
|
|
|
|
while (1) {
|
|
ref_val = array_valid_values[i];
|
|
if (ref_val == INT_MAX)
|
|
break;
|
|
if (val == ref_val)
|
|
return val;
|
|
i++;
|
|
}
|
|
/* val is not a valid value */
|
|
av_log(ctx, AV_LOG_DEBUG,
|
|
"%s %d are not supported. Set to default value : %d\n", val_name, val, default_value);
|
|
return default_value;
|
|
}
|