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avcodec: add missing files missed in previous commits

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Fixes compilation.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-07-27 10:59:38 -03:00
parent 5985a1bf72
commit 536bcc30e0
2 changed files with 272 additions and 0 deletions
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95
libavcodec/avs2_parser.c Normal file
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/*
* AVS2/IEEE 1857.4 video parser.
* Copyright (c) 2018 Huiwen Ren <hwrenx@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "parser.h"
#define SLICE_MAX_START_CODE 0x000001af
#define ISPIC(x) ((x) == 0xB3 || (x) == 0xB6)
#define ISUNIT(x) ((x) == 0xB0 || (x) == 0xB1 || (x) == 0xB2 || ISPIC(x))
static int avs2_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size)
{
int pic_found = pc->frame_start_found;
uint32_t state = pc->state;
int cur = 0;
if (!pic_found) {
for (; cur < buf_size; ++cur) {
state = (state<<8) | buf[cur];
if (ISUNIT(buf[cur])){
++cur;
pic_found = 1;
break;
}
}
}
if (pic_found) {
if (!buf_size)
return END_NOT_FOUND;
for (; cur < buf_size; ++cur) {
state = (state << 8) | buf[cur];
if ((state & 0xFFFFFF00) == 0x100 && state > SLICE_MAX_START_CODE) {
pc->frame_start_found = 0;
pc->state = -1;
return cur - 3;
}
}
}
pc->frame_start_found = pic_found;
pc->state = state;
return END_NOT_FOUND;
}
static int avs2_parse(AVCodecParserContext *s, AVCodecContext *avctx,
const uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size)
{
ParseContext *pc = s->priv_data;
int next;
if (s->flags & PARSER_FLAG_COMPLETE_FRAMES) {
next = buf_size;
} else {
next = avs2_find_frame_end(pc, buf, buf_size);
if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
*poutbuf = NULL;
*poutbuf_size = 0;
return buf_size;
}
}
*poutbuf = buf;
*poutbuf_size = buf_size;
return next;
}
AVCodecParser ff_avs2_parser = {
.codec_ids = { AV_CODEC_ID_AVS2 },
.priv_data_size = sizeof(ParseContext),
.parser_parse = avs2_parse,
.parser_close = ff_parse_close,
.split = ff_mpeg4video_split,
};

177
libavcodec/libdavs2.c Normal file
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/*
* AVS2 decoding using the davs2 library
*
* Copyright (C) 2018 Yiqun Xu, <yiqun.xu@vipl.ict.ac.cn>
* Falei Luo, <falei.luo@gmail.com>
* Huiwen Ren, <hwrenx@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/avutil.h"
#include "avcodec.h"
#include "libavutil/imgutils.h"
#include "internal.h"
#include "davs2.h"
typedef struct DAVS2Context {
void *decoder;
AVFrame *frame;
davs2_param_t param; // decoding parameters
davs2_packet_t packet; // input bitstream
int decoded_frames;
davs2_picture_t out_frame; // output data, frame data
davs2_seq_info_t headerset; // output data, sequence header
}DAVS2Context;
static av_cold int davs2_init(AVCodecContext *avctx)
{
DAVS2Context *cad = avctx->priv_data;
/* init the decoder */
cad->param.threads = avctx->thread_count;
cad->param.info_level = 0;
cad->decoder = davs2_decoder_open(&cad->param);
if (!cad->decoder) {
av_log(avctx, AV_LOG_ERROR, "decoder created error.");
return AVERROR(EINVAL);
}
av_log(avctx, AV_LOG_VERBOSE, "decoder created. %p\n", cad->decoder);
return 0;
}
static int davs2_dump_frames(AVCodecContext *avctx, davs2_picture_t *pic,
davs2_seq_info_t *headerset, int ret_type, AVFrame *frame)
{
DAVS2Context *cad = avctx->priv_data;
int bytes_per_sample = pic->bytes_per_sample;
int plane = 0;
int line = 0;
if (!headerset)
return 0;
if (!pic || ret_type == DAVS2_GOT_HEADER) {
avctx->width = headerset->width;
avctx->height = headerset->height;
avctx->pix_fmt = headerset->output_bit_depth == 10 ?
AV_PIX_FMT_YUV420P10 : AV_PIX_FMT_YUV420P;
avctx->framerate = av_d2q(headerset->frame_rate,4096);
return 0;
}
for (plane = 0; plane < 3; ++plane) {
int size_line = pic->widths[plane] * bytes_per_sample;
frame->buf[plane] = av_buffer_alloc(size_line * pic->lines[plane]);
if (!frame->buf[plane]){
av_log(avctx, AV_LOG_ERROR, "dump error: alloc failed.\n");
return AVERROR(EINVAL);
}
frame->data[plane] = frame->buf[plane]->data;
frame->linesize[plane] = pic->widths[plane];
for (line = 0; line < pic->lines[plane]; ++line)
memcpy(frame->data[plane] + line * size_line,
pic->planes[plane] + line * pic->strides[plane],
pic->widths[plane] * bytes_per_sample);
}
frame->width = cad->headerset.width;
frame->height = cad->headerset.height;
frame->pts = cad->out_frame.pts;
frame->pict_type = pic->type;
frame->format = avctx->pix_fmt;
cad->decoded_frames++;
return 1;
}
static av_cold int davs2_end(AVCodecContext *avctx)
{
DAVS2Context *cad = avctx->priv_data;
/* close the decoder */
if (cad->decoder) {
davs2_decoder_close(cad->decoder);
cad->decoder = NULL;
}
return 0;
}
static int davs2_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
DAVS2Context *cad = avctx->priv_data;
int buf_size = avpkt->size;
uint8_t *buf_ptr = avpkt->data;
AVFrame *frame = data;
int ret = DAVS2_DEFAULT;
if (!buf_size) {
return 0;
}
cad->packet.data = buf_ptr;
cad->packet.len = buf_size;
cad->packet.pts = avpkt->pts;
cad->packet.dts = avpkt->dts;
ret = davs2_decoder_send_packet(cad->decoder, &cad->packet);
if (ret == DAVS2_ERROR) {
av_log(avctx, AV_LOG_ERROR, "Decoder error: can't read packet\n");
return AVERROR(EINVAL);
}
ret = davs2_decoder_recv_frame(cad->decoder, &cad->headerset, &cad->out_frame);
if (ret != DAVS2_DEFAULT) {
*got_frame = davs2_dump_frames(avctx, &cad->out_frame, &cad->headerset, ret, frame);
davs2_decoder_frame_unref(cad->decoder, &cad->out_frame);
}
return buf_size;
}
AVCodec ff_libdavs2_decoder = {
.name = "libdavs2",
.long_name = NULL_IF_CONFIG_SMALL("Decoder for AVS2/IEEE 1857.4"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_AVS2,
.priv_data_size = sizeof(DAVS2Context),
.init = davs2_init,
.close = davs2_end,
.decode = davs2_decode_frame,
.capabilities = AV_CODEC_CAP_DELAY,//AV_CODEC_CAP_DR1 |
.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10,
AV_PIX_FMT_NONE },
.wrapper_name = "libdavs2",
};