April 2015 - ffmpeg-user - lists.ffmpeg.org

Full description of ffmpeg input - avoid analysis and probing of input files
by Thomas Seilund 03 Apr '15

03 Apr '15

Hi All, I have a process where I have a number of different inputs to ffmpeg. Typically I create inputs using ffmpeg, ie. ffmpeg -loop 1 -re -i 1.png -c libx264 -preset ultrafast -s 200x100 -r 24 - pix_fmt yuv420p -f mpegts udp://a.b:1235 ffmpeg -loop 1 -re -i 2.png -c libx264 -preset ultrafast -s 400x200 -r 24 - pix_fmt yuv420p -f mpegts udp://a.b:1236 ffmpeg -loop 1 -re -i 3.png -c libx264 -preset ultrafast -s 200x100 -r 24 - pix_fmt yuv420p -f mpegts udp://a.b:1237 When I read these input streams I often see that ffmpeg is not able to determine the input. See ex. below. How can I make ffmpeg pick up the input without any analysis or probing? Will a set of input parameters make it possible for ffmpeg to pick up the input right away? Can I do an ffprobe on the input a determine the needed input parameters for ffmpeg? Ex: ffplay -i udp://a.b:1235 . . . [h264 @ 0x7f552002b400] decode_slice_header error [h264 @ 0x7f552002b400] no frame! [h264 @ 0x7f552002b400] non-existing PPS 0 referenced 0B f=0/0 Last message repeated 1 times [h264 @ 0x7f552002b400] decode_slice_header error [h264 @ 0x7f552002b400] no frame! [h264 @ 0x7f552002b400] non-existing PPS 0 referenced 0B f=0/0 Last message repeated 1 times [h264 @ 0x7f552002b400] decode_slice_header error [h264 @ 0x7f552002b400] no frame! [h264 @ 0x7f552002b400] non-existing PPS 0 referenced 0B f=0/0 [mpegts @ 0x7f55200008c0] decoding for stream 0 failed [mpegts @ 0x7f55200008c0] Could not find codec parameters for stream 0 (Video: h264 ([27][0][0][0] / 0x001B), none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options udp://a.b:1235: could not find codec parameters Any help would be appriciated ! Thanks Thomas S

2 2

playing a stream at the correct speed from a file. help needed please
by JULIAN GARDNER 02 Apr '15

02 Apr '15

I have a thread that I am trying and failing to get to play a stream from disc as the correct rate. I have an input thread which does this in its packet loop, code is in to pause and resume the process depending on how many frames have been buffered. while (!inputSource->quit && !stop_all_tasks && av_read_frame(inputSource->fmt_ctx, &inputSource->pkt) >= 0) { int cnt; do { ret = decode_packet(&got_frame, 0, inputSource); if (ret < 0) break; inputSource->pkt.data += ret; inputSource->pkt.size -= ret; } while (!inputSource->quit && !stop_all_tasks && inputSource->pkt.size > 0); cnt = localNumberOfPackets( inputSource, VIDEO_INDEX); if( cnt>25) { do { sleep(1); cnt = localNumberOfPackets( inputSource, VIDEO_INDEX); } while( !inputSource->quit && !stop_all_tasks && cnt>15); } } } now the decode_packet does this, all standard stuff if (inputSource->pkt.stream_index == inputSource->video_stream_idx) { /* decode video frame */ ret = avcodec_decode_video2(inputSource->video_dec_ctx, frame, got_frame, &inputSource->pkt); if (ret < 0) { fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret)); return ret; } index = VIDEO_INDEX; } else if (inputSource->pkt.stream_index == inputSource->audio_stream_idx) { /* decode audio frame */ ret = avcodec_decode_audio4(inputSource->audio_dec_ctx, frame, got_frame, &inputSource->pkt); if (ret < 0) { fprintf(stderr, "Error decoding audio frame (%s)\n", av_err2str(ret)); return ret; } /* Some audio decoders decode only part of the packet, and have to be * called again with the remainder of the packet data. * Sample: fate-suite/lossless-audio/luckynight-partial.shn * Also, some decoders might over-read the packet. */ decoded = FFMIN(ret, inputSource->pkt.size); index = AUDIO_INDEX; } if( *got_frame && index<MAX_INDEX) { videoFrames *current = calloc( 1, sizeof( videoFrames)); double pts; if( (pts = av_frame_get_best_effort_timestamp( frame))==AV_NOPTS_VALUE) { pts = 0; } if( index==VIDEO_INDEX) pts *= av_q2d(inputSource->video_dec_ctx->time_base); else pts *= av_q2d(inputSource->audio_dec_ctx->time_base); current->frame = frame; current->pts = pts; current->next = NULL; localAddPacketToList( inputSource, index, current); } And finally where i seem to be having the problem the, video decode thread double frame_delay; double basicDelay = av_q2d(inputSource->video_dec_ctx->time_base) * inputSource->video_dec_ctx->ticks_per_frame; NextPts = PrePts = 0; gettimeofday(&start_time, NULL); start_usec = TIMEOFDAY(start_time); while( !inputSource->quit && !stop_all_tasks) { int cnt = localNumberOfPackets( inputSource, VIDEO_INDEX); if( cnt) { videoFrames *here; AVFrame *frame; int t; double pts; pthread_mutex_lock( &inputSource->list_mutex); here = inputSource->packets_list[VIDEO_INDEX]; inputSource->packets_list[VIDEO_INDEX] = here->next; frame = here->frame; pts = here->pts; pthread_mutex_unlock( &inputSource->list_mutex); // code from github, 3rd try See values at end if( !NextPts && !PrePts) { NextPts = PrePts = frame->pkt_pts; } if( frame->pkt_pts != AV_NOPTS_VALUE) { drift = frame->pkt_pts - NextPts; NextPts = ( frame->pkt_pts - PrePts) + frame->pkt_pts; Delay = NextPts - frame->pkt_pts - drift; if( Delay < 0) Delay = 0; frame_delay = Delay * 1000 * av_q2d( inputSource->video_dec_ctx->time_base); PrePts = frame->pkt_pts; } else { frame_delay = basicDelay * frame->repeat_pict * (basicDelay * 0.5); frame_delay *= 1000; } frame_delay = FFMIN( frame_delay, 200); if( inputSource->video_dec_ctx->codec_id == AV_CODEC_ID_H264) { frame_delay = FFMAX( frame_delay, 10); } printf( "Frame Display delay:%f drift:%8ld next:%8ld prev:%8ld Delay:%8ld (%d)\r\n", frame_delay, drift, NextPts, PrePts, Delay, cnt); usleep( frame_delay * 1000); if (frame->key_frame) { if (verbose) { printf("%s video_frame n:%d coded_n:%d pts:%s %f %c\n", inputSource->name, inputSource->video_frame_count, frame->display_picture_number, av_ts2timestr(frame->pts, &inputSource->video_dec_ctx->time_base), here->pts, frame->key_frame ? 'K':' '); } } } Now the problem is the stream does not play at the corerct speed and i have cannot see why this fails. I have tried 3 different ways and the one above is taken from a videoplayer on github. Examples of files/streams tried Live stream - time_base:1/50 ticks_per_frame:2 delay:8 framerate:25/1 pkt_timebase:1/90000 Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 720x288 [SAR 32:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Frame Display delay:10.000000 drift: 0 next:8317753200 prev:8317753200 Delay: 0 (9,0) Frame Display delay:10.000000 drift: 3600 next:8317760400 prev:8317756800 Delay: 0 (9,0) Frame Display delay:200.000000 drift: 0 next:8317764000 prev:8317760400 Delay: 3600 (9,5) Mp4 File - time_base:1/50 ticks_per_frame:2 delay:8 framerate:25/1 pkt_timebase:1/100 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x544 [SAR 1:1 DAR 45:34], 1391 kb/s, 25 fps, 25 tbr, 100 tbn, 50 tbc (default) Frame Display delay:10.000000 drift: 0 next: 8 prev: 8 Delay: 0 (10,15) Frame Display delay:10.000000 drift: 4 next: 16 prev: 12 Delay: 0 (20,30) Frame Display delay:80.000000 drift: 0 next: 20 prev: 16 Delay: 4 (31,44) Mp4 File - time_base:1/60000 ticks_per_frame:2 delay:8 framerate:0/1 pkt_timebase:1/30000 Stream #0:1(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 480x320 [SAR 1:1 DAR 3:2], 501 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc (default) Frame Display delay:10.000000 drift: 0 next: 0 prev: 0 Delay: 0 (15,43) Frame Display delay:10.000000 drift: 0 next: 1001 prev: 1001 Delay: 0 (66,109) Frame Display delay:10.000000 drift: 1001 next: 3003 prev: 2002 Delay: 0 (103,175) Frame Display delay:16.683333 drift: 0 next: 4004 prev: 3003 Delay: 1001 (142,230) Frame Display delay:16.683333 drift: 0 next: 5005 prev: 4004 Delay: 1001 (214,328) Can anyone help or point me in the direction of code that will show me the errors in my ways? I would like to be able to work out the delays needed for any file type. joolz

2 2

Creating multiple output, sequentially
by Jérôme Reybert 02 Apr '15

02 Apr '15

Hi, I would like, in one ffmpeg instance, create muliple outputs files, BUT not in parallel. Is it possible to insert or fake dependencies between the output files? Regards, -- Jérôme

5 8

Decode to BGR24 avi
by Timo Stjernberg 02 Apr '15

02 Apr '15

Hello. I am returning this issue back via the actual mailing list, since posting via nabble.com doesn't seem to work right. Refer to http://ffmpeg-users.933282.n4.nabble.com/Decode-to-BGR24-raw-AVI-td4653855.… the original thread. There seems to be a disagreement between FFmpeg and VirtualDub of what uncompressed bgr24 raw avi really is. I can tell this already by looking at file sizes that they produce from the same video but PSNR & other metrics tell me they're definitely not the same video. I have done extensive testing on different videos with ffmpeg and so I decided to set this test up for you guys to figure out what is going south on bgr24 raw avi's. All example video files are accessible at http://videotimo.fi/ffmpeg/ TEST PHASE 1: We start with a raw original avi that has been built from PNG frames with VirtualDub (sintel_raw_original.avi). We make a rawvideo -pix_fmt bgr24 copy of it with ffmpeg to find out that even when there should be no difference between input and output, the files are not the same in size. (sintel_ffmpeg_raw2raw.avi) Console output: ffmpeg -i G:\Testivideot\sintel_raw_original.avi -vcodec rawvideo -pix_fmt bgr24 sintel_ffmpeg_raw2raw.avi: ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the FFmpeg developers built on Nov 25 2012 12:21:26 with gcc 4.7.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runt ime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass - -enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enab le-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-libo pus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheo ra --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena ble-zlib libavutil 52. 9.100 / 52. 9.100 libavcodec 54. 77.100 / 54. 77.100 libavformat 54. 37.100 / 54. 37.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 23.102 / 3. 23.102 libswscale 2. 1.102 / 2. 1.102 libswresample 0. 17.101 / 0. 17.101 libpostproc 52. 2.100 / 52. 2.100 Input #0, avi, from 'G:\Testivideot\sintel_raw_original.avi': Duration: 00:00:01.21, start: 0.000000, bitrate: 234514 kb/s Stream #0:0: Video: rawvideo, bgr24, 848x480, 24 tbr, 24 tbn, 24 tbc Output #0, avi, to 'd:\sintel_ffmpeg_raw2raw.avi': Metadata: ISFT : Lavf54.37.100 Stream #0:0: Video: rawvideo, bgr24, 848x480, q=2-31, 200 kb/s, 24 tbn, 24 t bc Stream mapping: Stream #0:0 -> #0:0 (rawvideo -> rawvideo) Press [q] to stop, [?] for help frame= 21 fps=0.0 q=0.0 size= 25048kB time=00:00:00.87 bitrate=234508.5kbits frame= 29 fps=0.0 q=0.0 Lsize= 34589kB time=00:00:01.20 bitrate=234497.3kbit s/s video:34582kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.018011% ---------------------------------------------------------------------------------- TEST PHASE 2: We encode the raw original to mpeg2 (sintel_ffmpeg_raw2mpeg2.avi). The encode goes smoothly. Console output: ffmpeg -i sintel_raw_original.avi -vcodec mpeg2video -b:v 2000k sintel_ffmpeg_raw2mpeg2.avi: ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the FFmpeg developers built on Nov 25 2012 12:21:26 with gcc 4.7.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runt ime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass - -enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enab le-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-libo pus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheo ra --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena ble-zlib libavutil 52. 9.100 / 52. 9.100 libavcodec 54. 77.100 / 54. 77.100 libavformat 54. 37.100 / 54. 37.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 23.102 / 3. 23.102 libswscale 2. 1.102 / 2. 1.102 libswresample 0. 17.101 / 0. 17.101 libpostproc 52. 2.100 / 52. 2.100 Input #0, avi, from 'G:\Testivideot\sintel_raw_original.avi': Duration: 00:00:01.21, start: 0.000000, bitrate: 234514 kb/s Stream #0:0: Video: rawvideo, bgr24, 848x480, 24 tbr, 24 tbn, 24 tbc Output #0, avi, to 'd:\sintel_ffmpeg_raw2mpeg2.avi': Metadata: ISFT : Lavf54.37.100 Stream #0:0: Video: mpeg2video (mpg2 / 0x3267706D), yuv420p, 848x480, q=2-31 , 2000 kb/s, 24 tbn, 24 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo -> mpeg2video) Press [q] to stop, [?] for help frame= 19 fps=0.0 q=4.0 size= 302kB time=00:00:00.70 bitrate=3494.3kbits/s frame= 29 fps=0.0 q=3.5 Lsize= 408kB time=00:00:01.16 bitrate=2865.0kbits/ s video:402kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.554130% ------------------------------------------------------------------------------ TEST PHASE 3: We decode the mpeg2 video back to bgr24 raw avi (sintel_ffmpeg_mpeg2toRAW.avi). The result is not at all what I would expect. The decoded video has one frame more than the original. Therefore if I compare the original and the decoded video for PSNR or MAE, the calculations don't match at all. Only if I strip the first frame from the decoded avi, the calculations seem valid. Console output: ffmpeg -i D:\sintel_ffmpeg_raw2mpeg2.avi -vcodec rawvideo -pix_fmt bgr24 d:\sintel_ffmpeg_mpeg2toRAW.avi ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the FFmpeg developers built on Nov 25 2012 12:21:26 with gcc 4.7.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runt ime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass - -enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enab le-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-libo pus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheo ra --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena ble-zlib libavutil 52. 9.100 / 52. 9.100 libavcodec 54. 77.100 / 54. 77.100 libavformat 54. 37.100 / 54. 37.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 23.102 / 3. 23.102 libswscale 2. 1.102 / 2. 1.102 libswresample 0. 17.101 / 0. 17.101 libpostproc 52. 2.100 / 52. 2.100 Input #0, avi, from 'D:\sintel_ffmpeg_raw2mpeg2.avi': Metadata: encoder : Lavf54.37.100 Duration: 00:00:01.21, start: 0.000000, bitrate: 2766 kb/s Stream #0:0: Video: mpeg2video (Main) (mpg2 / 0x3267706D), yuv420p, 848x480 [SAR 1:1 DAR 53:30], 24 fps, 24 tbr, 24 tbn, 48 tbc Output #0, avi, to 'd:\sintel_ffmpeg_mpeg2toRAW.avi': Metadata: ISFT : Lavf54.37.100 Stream #0:0: Video: rawvideo, bgr24, 848x480 [SAR 1:1 DAR 53:30], q=2-31, 20 0 kb/s, 24 tbn, 24 tbc Stream mapping: Stream #0:0 -> #0:0 (mpeg2video -> rawvideo) Press [q] to stop, [?] for help frame= 29 fps=0.0 q=0.0 Lsize= 34589kB time=00:00:01.25 bitrate=226681.3kbit s/s video:34582kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.018293% --------------------------------------------------------------------------------- This extraneous frame does seem to appear at least with VC-1 and mpeg2 encode/decode process. Still, something is done very differently on all bgr24 raw avi decodes because I still have to run all the raw avi decodes through VirtualDub after ffmpeg before feeding the test videos to the PSNR calculator. Additionally, Microsoft Expression Encoder 4 doesn't seem to understand the raw avi produced by ffmpeg at all. Anybody had any similar incidents? Anybody that can clarify any of this? What am I doing wrong?

4 8

I have a problem
by Mohammad Reza Rezaei 01 Apr '15

01 Apr '15

hi i have a problem when i want CC ffmpeg for arm. like this: root@ubuntu:/home/m/Desktop/rdf0287-zc706-pcie-trd-2014-4/software/pre-built/ffmpeg# ./configure --enable-shared --disable-static --cross-prefix=arm-xilinx-linux-gnueabi- --arch=armv7l --target-os=linux --prefix=pwd arm-xilinx-linux-gnueabi-gcc is unable to create an executable file. C compiler test failed. If you think configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to the ffmpeg-user(a)ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file "config.log" produced by configure as this will help solve the problem. can you help me?

2 1

Simple question regarding probing and resetting position in C
by JULIAN GARDNER 01 Apr '15

01 Apr '15

I have the generic code to open a small file and start getting packets from it, but it seems that the probing moves the internal pointers along around 20 seconds into the file. I have tried to avio_seek (pb, 0, SEEK_SET) to reset it to the start but this has not helped. What is the correct way of resetting the opened file so i can decode from the start, joolz

2 2

Hi
by sathish 01 Apr '15

01 Apr '15

First time Executing successfully from next time it will give empty frame could you please help me about this issue Option: ffmpeg Option: -y Option: -i Option: /sdcard/song.mp3 Option: -i Option: /sdcard/myvideo.mp4 Option: -acodec Option: copy Option: -vcodec Option: copy Option: /sdcard/newVideo.mp4 Running main Stream mapping: Stream #1:0 -> #0:0 (copy) Stream #0:0 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 0 fps=0.0 q=-1.0 size= 0kB time=00:00:00.00 bitrate=N/A No more output streams to write to, finishing. frame= 0 fps=0.0 q=-1.0 Lsize= 1kB time=00:00:00.00 bitrate=N/A video:0kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.000000% Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used) 0 frames successfully decoded, 0 decoding errors Main ended with status 0 Trimming: success

3 3

Memory issues while encoding desktop capture
by Prajna Kandarpa 01 Apr '15

01 Apr '15

Hi folks! I'm working on an application written in C that makes use of the ffmpeg libraries to record the desktop on OS X using the avfoundation device. I've included the relevant parts of the code in this email. Full code can be found here http://stackoverflow.com/q/29341161/799285. I think I'm doing everything properly upto the decode encode loop which I've included below. When I run this program, I'm able to encode about 50-100 frames before I receive a SIGSEGV. Valgrind analysis can be found here: http://pastebin.com/MPeRhjhN. For each frame that was encoded, my memory usage goes up by about 4-6MB so I know something is not being freed properly. Can I get some feedback on this code? Anything that I've done wrong? or am using incorrectly? Your help is much appreciated, and if you ever are in Waterloo, ON, I shall buy you a pint or two. int frame_count = 0; while (av_read_frame(inFmtCtx, &inPacket) >= 0) { if (inPacket.stream_index == videostream) { avcodec_decode_video2(inCodecCtx, inFrame, &frameFinished, &inPacket); // 1 Frame might need more than 1 packet to be filled if (frameFinished) { outFrameYUV = av_frame_alloc(); uint8_t *buffer = (uint8_t *)av_malloc(numBytes); int ret = avpicture_fill((AVPicture *)outFrameYUV, buffer, PIX_FMT_YUV420P, inCodecCtx->width, inCodecCtx->height); if (ret < 0) { printf("%d is return val for fill\n", ret); return -1; } // convert image to YUV sws_scale(swsCtx, (uint8_t const *const *)inFrame->data, inFrame->linesize, 0, inCodecCtx->height, outFrameYUV->data, outFrameYUV->linesize); // outFrameYUV now holds the YUV scaled frame/picture outFrameYUV->format = outCodecCtx->pix_fmt; outFrameYUV->width = outCodecCtx->width; outFrameYUV->height = outCodecCtx->height; AVPacket pkt; int got_output; av_init_packet(&pkt); pkt.data = NULL; pkt.size = 0; outFrameYUV->pts = frame_count; ret = avcodec_encode_video2(outCodecCtx, &pkt, outFrameYUV, &got_output); if (ret < 0) { fprintf(stderr, "Error encoding video frame: %s\n", av_err2str(ret)); return -1; } if (got_output) { if (stream->codec->coded_frame->key_frame) { pkt.flags |= AV_PKT_FLAG_KEY; } pkt.stream_index = stream->index; if (pkt.pts != AV_NOPTS_VALUE) pkt.pts = av_rescale_q(pkt.pts, stream->codec->time_base, stream->time_base); if (pkt.dts != AV_NOPTS_VALUE) pkt.dts = av_rescale_q(pkt.dts, stream->codec->time_base, stream->time_base); if (avio_open_dyn_buf(&outFmtCtx->pb) != 0) { printf("ERROR: Unable to open dynamic buffer\n"); } ret = av_interleaved_write_frame(outFmtCtx, &pkt); unsigned char *pb_buffer; int len = avio_close_dyn_buf(outFmtCtx->pb, (unsigned char **)&pb_buffer); avio_write(outFmtCtx->pb, (unsigned char *)pb_buffer, len); } else { ret = 0; } if (ret != 0) { fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret)); exit(1); } fprintf(stderr, "encoded frame #%d\n", frame_count); frame_count++; av_free_packet(&pkt); av_frame_unref(outFrameYUV); av_free(buffer); } } av_free_packet(&inPacket); } av_write_trailer(outFmtCtx); Here's my ffmpeg library versions: ffmpeg version N-70876-g294bb6c Copyright (c) 2000-2015 the FFmpeg developers built with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn) configuration: --prefix=/usr/local --enable-gpl --enable-postproc --enable-pthreads --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-libvorbis --disable-mmx --disable-ssse3 --disable-armv5te --disable-armv6 --disable-neon --enable-shared --disable-static --disable-stripping libavutil 54. 20.100 / 54. 20.100 libavcodec 56. 29.100 / 56. 29.100 libavformat 56. 26.101 / 56. 26.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 13.101 / 5. 13.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Hyper fast Audio and Video encoder Thanks, Praj

1 0