本人從事視頻編解碼研發(fā)工作達(dá)8年之久，一直使用FFMPEG，directdraw進(jìn)行視頻軟件開(kāi)發(fā)。希望有需要開(kāi)發(fā)的聯(lián)系我：電話(huà)：13764413903。QQ：1049568282。
附：本人有流媒體服務(wù)器方案，視頻編解庫(kù)（ffmpeg,directdraw）可轉(zhuǎn)讓。 |
使用ffmpeg封裝ts流的問(wèn)題
承接高清視頻監(jiān)控軟件開(kāi)發(fā)，QQ：1049568282。手機(jī)：13764413903
各位好，我的問(wèn)題是這樣的。我有一個(gè) h264編碼的ES流視頻文件,我想用ffmpeg來(lái)把視頻文件封裝成TS流。代碼如下(部分代碼來(lái)自網(wǎng)上，謝謝共享這份代碼的網(wǎng)友)
- #include "stdafx.h"
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <math.h>
- #ifdef __cplusplus
- extern "C"{
- #endif
- #include "libavformat\avformat.h"
- #include "libavcodec\avcodec.h"
- #include "libavutil\avutil.h"
- #include "libavutil\rational.h"
- #include "libavdevice\avdevice.h"
- #include "libavutil/mathematics.h"
- #include "libswscale/swscale.h"
- #ifdef __cplusplus
- }
- #endif //__cplusplus
- static AVStream* add_output_stream(AVFormatContext*
output_format_context, AVStream* input_stream)
- {
-
AVCodecContext* input_codec_context =
NULL;
-
AVCodecContext* output_codec_context =
NULL;
-
-
AVStream* output_stream = NULL;
-
output_stream =
av_new_stream(output_format_context, 0);
-
if (!output_stream)
-
{
-
printf("Call av_new_stream
function failed\n");
-
return NULL;
-
}
-
input_codec_context =
input_stream->codec;
-
output_codec_context =
output_stream->codec;
-
output_codec_context->codec_id =
input_codec_context->codec_id;
-
output_codec_context->codec_type
= input_codec_context->codec_type;
-
output_codec_context->codec_tag =
input_codec_context->codec_tag;
-
output_codec_context->bit_rate =
input_codec_context->bit_rate;
-
output_codec_context->extradata =
input_codec_context->extradata;
-
output_codec_context->extradata_size =
input_codec_context->extradata_size;
-
if
(av_q2d(input_codec_context->time_base) *
input_codec_context->ticks_per_frame >
av_q2d(input_stream->time_base)
&&
av_q2d(input_stream->time_base) < 1.0
/ 1000)
-
{
-
output_codec_context->time_base =
input_codec_context->time_base;
-
output_codec_context->time_base.num *=
input_codec_context->ticks_per_frame;
-
}
-
else
-
{
-
output_codec_context->time_base =
input_stream->time_base;
-
}
-
switch
(input_codec_context->codec_type)
-
{
-
case AVMEDIA_TYPE_AUDIO:
-
output_codec_context->channel_layout =
input_codec_context->channel_layout;
-
output_codec_context->sample_rate =
input_codec_context->sample_rate;
-
output_codec_context->channels =
input_codec_context->channels;
-
output_codec_context->frame_size =
input_codec_context->frame_size;
-
if
((input_codec_context->block_align == 1
&&
input_codec_context->codec_id == CODEC_ID_MP3) ||
input_codec_context->codec_id ==
CODEC_ID_AC3)
-
{
-
output_codec_context->block_align = 0;
-
}
-
else
-
{
-
output_codec_context->block_align =
input_codec_context->block_align;
-
}
-
break;
-
case AVMEDIA_TYPE_VIDEO:
-
output_codec_context->pix_fmt =
input_codec_context->pix_fmt;
-
output_codec_context->width =
input_codec_context->width;
-
output_codec_context->height =
input_codec_context->height;
-
output_codec_context->has_b_frames =
input_codec_context->has_b_frames;
-
if
(output_format_context->oformat->flags
& AVFMT_GLOBALHEADER)
-
{
-
output_codec_context->flags |=
CODEC_FLAG_GLOBAL_HEADER;
-
}
-
break;
-
default:
-
break;
-
}
-
return output_stream;
- }
- int _tmain(int argc, _TCHAR* argv[])
- {
-
const char* input =
"F:\\VideoPlayer\\debug\\StreamTotal.h264";
-
const char* output_prefix = NULL;
-
char* segment_duration_check = 0;
-
const char* index = NULL;
-
char* tmp_index = NULL;
-
const char* http_prefix = NULL;
-
long max_tsfiles = NULL;
-
double prev_segment_time = 0;
-
double segment_duration = 0;
-
-
AVInputFormat* ifmt = NULL;
-
AVOutputFormat* ofmt = NULL;
-
AVFormatContext* ic = NULL;
-
AVFormatContext* oc = NULL;
-
AVStream* video_st = NULL;
-
AVStream* audio_st = NULL;
-
AVCodec* codec = NULL;
-
AVDictionary* pAVDictionary = NULL;
-
av_register_all();
-
char szError[256] = {0};
-
int nRet =
avformat_open_input(&ic, input, ifmt,
&pAVDictionary);
-
if (nRet != 0)
-
{
-
av_strerror(nRet, szError,
256);
-
printf(szError);
-
printf("\n");
-
printf("Call
avformat_open_input function failed!\n");
-
return 0;
-
}
-
if (av_find_stream_info(ic) <
0)
-
{
-
printf("Call
av_find_stream_info function failed!\n");
-
return 0;
-
}
-
ofmt = av_guess_format("mpegts", NULL,
NULL);
-
if (!ofmt)
-
{
-
printf("Call av_guess_format
function failed!\n");
-
return 0;
-
}
-
oc = avformat_alloc_context();
-
if (!oc)
-
{
-
printf("Call av_guess_format
function failed!\n");
-
return 0;
-
}
-
oc->oformat = ofmt;
-
-
int video_index = -1, audio_index =
-1;
-
for (unsigned int i = 0; i <
ic->nb_streams &&
(video_index < 0 || audio_index < 0);
i++)
-
{
-
switch
(ic->streams[i]->codec->codec_type)
-
{
-
case
AVMEDIA_TYPE_VIDEO:
-
video_index = i;
-
ic->streams[i]->discard =
AVDISCARD_NONE;
-
video_st =
add_output_stream(oc, ic->streams[i]);
-
break;
-
case
AVMEDIA_TYPE_AUDIO:
-
audio_index = i;
-
ic->streams[i]->discard =
AVDISCARD_NONE;
-
audio_st =
add_output_stream(oc, ic->streams[i]);
-
break;
-
default:
-
ic->streams[i]->discard =
AVDISCARD_ALL;
-
break;
-
}
-
}
-
codec =
avcodec_find_decoder(video_st->codec->codec_id);
-
if (codec == NULL)
-
{
-
printf("Call
avcodec_find_decoder function failed!\n");
-
return 0;
-
}
-
if (avcodec_open(video_st->codec,
codec) < 0)
-
{
-
printf("Call avcodec_open
function failed !\n");
-
return 0;
-
}
-
if
(avio_open(&oc->pb,
"F:\\VideoPlayer\\debug\\264.ts", AVIO_FLAG_WRITE) <
0)
-
{
-
return 0;
-
}
-
if (avformat_write_header(oc,
&pAVDictionary))
-
{
-
printf("Call
avformat_write_header function failed.\n");
-
return 0;
-
}
-
uint8_t *dummy =
NULL;
-
int dummy_size =
0;
-
AVBitStreamFilterContext* bsfc
= av_bitstream_
-
if(bsfc ==
NULL)
-
{
-
return
-1;
-
}
-
int decode_done = 0;
-
do
-
{
-
double segment_time =
0;
-
AVPacket packet;
-
decode_done =
av_read_frame(ic, &packet);
-
if (decode_done
< 0)
-
break;
-
-
if
(av_dup_packet(&packet) <
0)
-
{
-
printf("Call av_dup_packet function failed\n");
-
av_free_packet(&packet);
-
break;
-
}
-
static int nCount =
0;
-
if (nCount++ <
20)
-
{
-
printf("The packet.stream_index is %ld\n",
packet.stream_index);
-
}
-
if (packet.stream_index ==
video_index && (packet.flags
& AV_PKT_FLAG_KEY))
-
{
-
segment_time
= (double)video_st->pts.val *
video_st->time_base.num /
video_st->time_base.den;
-
}
-
else if
(packet.stream_index == audio_index) {
-
segment_time
= (double)audio_st->pts.val *
audio_st->time_base.num /
audio_st->time_base.den;
-
}
-
else
{
-
segment_time
= prev_segment_time;
-
}
-
nRet =
av_interleaved_write_frame(oc, &packet);
-
if (nRet <
0)
-
{
-
printf("Call av_interleaved_write_frame function
failed\n");
-
}
-
else if (nRet
> 0)
-
{
-
printf("End of stream requested\n");
-
av_free_packet(&packet);
-
break;
-
}
-
av_free_packet(&packet);
-
}while(!decode_done);
-
av_write_trailer(oc);
-
av_bitstream_filter_close(bsfc);
-
avcodec_close(video_st->codec);
-
for(unsigned int k = 0; k <
oc->nb_streams; k++)
-
{
-
av_freep(&oc->streams[k]->codec);
-
av_freep(&oc->streams[k]);
-
}
-
av_free(oc);
-
getchar();
-
return 0;
- }
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