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copied!<p>I believe if you set the following, you will see video playback.</p> <pre><code>packet.flags |= AV_PKT_FLAG_KEY; packet.pts = packet.dts = 0; </code></pre> <p>You should really set packet.flags according to the h264 packet headers. You might try <a href="https://stackoverflow.com/q/1957427">this fellow stack overflowian's</a> suggestion for extracting directly from the stream.</p> <p>If you are also adding audio, then pts/dts is going to be more important. I suggest you study <a href="http://dranger.com/ffmpeg/tutorial05.html" rel="nofollow noreferrer">this tutorial</a></p> <p><strong>EDIT</strong></p> <p>I found time to extract out what is working for me from my test app. For some reason, dts/pts values of zero works for me, but values other than 0 or AV_NOPTS_VALUE do not. I wonder if we have different versions of ffmpeg. I have the latest from <strong>git://git.videolan.org/ffmpeg.git</strong>.</p> <p><strong>fftest.cpp</strong></p> <pre><code>#include <string> #ifndef INT64_C #define INT64_C(c) (c ## LL) #define UINT64_C(c) (c ## ULL) #endif //#define _M #define _M printf( "%s(%d) : MARKER\n", __FILE__, __LINE__ ) extern "C" { #include "libavcodec/avcodec.h" #include "libavformat/avformat.h" }; AVFormatContext *fc = 0; int vi = -1, waitkey = 1; // < 0 = error // 0 = I-Frame // 1 = P-Frame // 2 = B-Frame // 3 = S-Frame int getVopType( const void *p, int len ) { if ( !p || 6 >= len ) return -1; unsigned char *b = (unsigned char*)p; // Verify NAL marker if ( b[ 0 ] || b[ 1 ] || 0x01 != b[ 2 ] ) { b++; if ( b[ 0 ] || b[ 1 ] || 0x01 != b[ 2 ] ) return -1; } // end if b += 3; // Verify VOP id if ( 0xb6 == *b ) { b++; return ( *b & 0xc0 ) >> 6; } // end if switch( *b ) { case 0x65 : return 0; case 0x61 : return 1; case 0x01 : return 2; } // end switch return -1; } void write_frame( const void* p, int len ) { if ( 0 > vi ) return; AVStream *pst = fc->streams[ vi ]; // Init packet AVPacket pkt; av_init_packet( &pkt ); pkt.flags |= ( 0 >= getVopType( p, len ) ) ? AV_PKT_FLAG_KEY : 0; pkt.stream_index = pst->index; pkt.data = (uint8_t*)p; pkt.size = len; // Wait for key frame if ( waitkey ) if ( 0 == ( pkt.flags & AV_PKT_FLAG_KEY ) ) return; else waitkey = 0; pkt.dts = AV_NOPTS_VALUE; pkt.pts = AV_NOPTS_VALUE; // av_write_frame( fc, &pkt ); av_interleaved_write_frame( fc, &pkt ); } void destroy() { waitkey = 1; vi = -1; if ( !fc ) return; _M; av_write_trailer( fc ); if ( fc->oformat && !( fc->oformat->flags & AVFMT_NOFILE ) && fc->pb ) avio_close( fc->pb ); // Free the stream _M; av_free( fc ); fc = 0; _M; } int get_nal_type( void *p, int len ) { if ( !p || 5 >= len ) return -1; unsigned char *b = (unsigned char*)p; // Verify NAL marker if ( b[ 0 ] || b[ 1 ] || 0x01 != b[ 2 ] ) { b++; if ( b[ 0 ] || b[ 1 ] || 0x01 != b[ 2 ] ) return -1; } // end if b += 3; return *b; } int create( void *p, int len ) { if ( 0x67 != get_nal_type( p, len ) ) return -1; destroy(); const char *file = "test.avi"; CodecID codec_id = CODEC_ID_H264; // CodecID codec_id = CODEC_ID_MPEG4; int br = 1000000; int w = 480; int h = 354; int fps = 15; // Create container _M; AVOutputFormat *of = av_guess_format( 0, file, 0 ); fc = avformat_alloc_context(); fc->oformat = of; strcpy( fc->filename, file ); // Add video stream _M; AVStream *pst = av_new_stream( fc, 0 ); vi = pst->index; AVCodecContext *pcc = pst->codec; _M; avcodec_get_context_defaults2( pcc, AVMEDIA_TYPE_VIDEO ); pcc->codec_type = AVMEDIA_TYPE_VIDEO; pcc->codec_id = codec_id; pcc->bit_rate = br; pcc->width = w; pcc->height = h; pcc->time_base.num = 1; pcc->time_base.den = fps; // Init container _M; av_set_parameters( fc, 0 ); if ( !( fc->oformat->flags & AVFMT_NOFILE ) ) avio_open( &fc->pb, fc->filename, URL_WRONLY ); _M; av_write_header( fc ); _M; return 1; } int main( int argc, char** argv ) { int f = 0, sz = 0; char fname[ 256 ] = { 0 }; char buf[ 128 * 1024 ]; av_log_set_level( AV_LOG_ERROR ); av_register_all(); do { // Raw frames in v0.raw, v1.raw, v2.raw, ... // sprintf( fname, "rawvideo/v%lu.raw", f++ ); sprintf( fname, "frames/frame%lu.bin", f++ ); printf( "%s\n", fname ); FILE *fd = fopen( fname, "rb" ); if ( !fd ) sz = 0; else { sz = fread( buf, 1, sizeof( buf ) - FF_INPUT_BUFFER_PADDING_SIZE, fd ); if ( 0 < sz ) { memset( &buf[ sz ], 0, FF_INPUT_BUFFER_PADDING_SIZE ); if ( !fc ) create( buf, sz ); if ( fc ) write_frame( buf, sz ); } // end if fclose( fd ); } // end else } while ( 0 < sz ); destroy(); } </code></pre>

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