June 2011 - FFmpeg-trac - lists.ffmpeg.org

#294(undetermined:new): deinterlacer does not clear interlaced_frame flag
by FFmpeg 31 Dec '12

31 Dec '12

#294: deinterlacer does not clear interlaced_frame flag -------------------------------+--------------------- Reporter: Fritz | Type: defect Status: new | Priority: normal Component: undetermined | Version: git Keywords: deinterlace libav | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | -------------------------------+--------------------- transcoding to a y4m file. used -deinterlace which did deinterlace the video, but the y4m header has the interlaced bit set. This also occurs with libav and yadif. This patch fixes the problem with -deinterlace by clearing the bit on a successful deinterlace. Looking through yadif it appears that the flag is cleared, but it was still showing up on the file. I did not pursue it further. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/294> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#143(undetermined:new): YUV video to RGB image export color conversion issue
by FFmpeg 31 Dec '12

31 Dec '12

#143: YUV video to RGB image export color conversion issue ---------------------------+-------------------------- Reporter: peter_b | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: RGB YUV color | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | ---------------------------+-------------------------- When extracting images from the video (yuv422p), the color values in the interlaced areas of the video are deviate from their original beyond recognition. Image comparisons and the original video can be found at: http://download.das- werkstatt.com/pb/mthk/examples/color_problem/problem.html -- Ticket URL: <http://ffmpeg.org/trac/ffmpeg/ticket/143> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#236(undetermined:new): Floating point exception error with -dcodec copy on QuickTime timecode track
by FFmpeg 19 Dec '12

19 Dec '12

#236: Floating point exception error with -dcodec copy on QuickTime timecode track --------------------------+-------------------------- Reporter: dericed | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: dcodec | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- When using -dcodec copy to copy a timecode track from an input Quicktime to an output Quicktime, I get a "Floating point exception" error and the unresulting file is unplayable. {{{ ffmpeg -i fcp_export8.mov -vcodec copy -acodec copy -dcodec copy fcp_export9.mov ffmpeg version git-N-30166-g1bc81bf, Copyright (c) 2000-2011 the FFmpeg developers built on May 23 2011 22:42:17 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3) configuration: --enable-gpl --enable-libfreetype --enable-frei0r --enable-libx264 --enable-shared libavutil 51. 2. 1 / 51. 2. 1 libavcodec 53. 6. 0 / 53. 6. 0 libavformat 53. 2. 0 / 53. 2. 0 libavdevice 53. 0. 0 / 53. 0. 0 libavfilter 2. 10. 0 / 2. 10. 0 libswscale 0. 14. 0 / 0. 14. 0 libpostproc 51. 2. 0 / 51. 2. 0 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x101012400] Could not find codec parameters (Data: tmcd / 0x64636D74, 0 kb/s) Last message repeated 2 times Seems stream 0 codec frame rate differs from container frame rate: 29.97 (30000/1001) -> 29.97 (2997/100) Last message repeated 2 times Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'fcp_export8.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2010-03-03 06:08:19 Duration: 00:00:10.01, start: 0.000000, bitrate: 505 kb/s Stream #0.0(eng): Video: dvvideo, yuv411p, 720x480 [PAR 8:9 DAR 4:3], 28771 kb/s, PAR 10:11 DAR 15:11, 29.97 fps, 29.97 tbr, 2997 tbn, 29.97 tbc Metadata: creation_time : 2010-03-03 06:08:19 Stream #0.1(eng): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s Metadata: creation_time : 2010-03-03 06:08:19 Stream #0.2(eng): Data: tmcd / 0x64636D74, 0 kb/s Metadata: creation_time : 2010-03-03 06:08:19 Stream #0.3(eng): Data: tmcd / 0x64636D74, 0 kb/s Metadata: creation_time : 2010-03-03 06:08:19 Stream #0.4(eng): Data: tmcd / 0x64636D74, 0 kb/s Metadata: creation_time : 2010-03-03 06:08:19 Ignoring attempt to set invalid timebase for st:2 Output #0, mov, to 'fcp_export9.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2010-03-03 06:08:19 encoder : Lavf53.2.0 Stream #0.0(eng): Video: dvvideo, yuv411p, 720x480 [PAR 10:11 DAR 15:11], q=2-31, 28771 kb/s, 30k tbn, 29.97 tbc Metadata: creation_time : 2010-03-03 06:08:19 Stream #0.1(eng): Audio: pcm_s16le, 48000 Hz, 2 channels, 1536 kb/s Metadata: creation_time : 2010-03-03 06:08:19 Stream #0.2(eng): Data: tmcd / 0x64636D74, 0 kb/s Metadata: creation_time : 2010-03-03 06:08:19 Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Stream #0.2 -> #0.2 Press [q] to stop, [?] for help Floating point exception }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/236> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#132(avformat:new): viv demuxer
by FFmpeg 28 Nov '12

28 Nov '12

#132: viv demuxer --------------------------+---------------------- Reporter: cehoyos | Owner: Type: enhancement | Status: new Priority: wish | Component: avformat Version: git-master | Keywords: Blocked By: | Blocking: Reproduced: 0 | Analyzed: 0 --------------------------+---------------------- (issue 99) FFmpeg is missing a viv demuxer. MPlayer contains a demuxer in libmpdemux/demux_viv.c. Samples can be found in http://samples.multimedia.cx/vivo/ -- Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/132> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#166(undetermined:new): FFplay + image = stats are print in the console
by FFmpeg 22 Nov '12

22 Nov '12

#166: FFplay + image = stats are print in the console --------------------------+-------------------------- Reporter: ami_stuff | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- issue 1808 {{{ Author: ami_stuff Date: 2010-07-28.11:30:36 When you run FFplay with some image you will notice that time counter will change. sample file: http://samples.mplayerhq.hu/image-samples/11Bos20.bmp C:\>ffplay >out.txt 11Bos20.bmp FFplay version SVN-r24565, Copyright (c) 2003-2010 the FFmpeg developers built on Jul 28 2010 04:30:08 with gcc 4.4.2 configuration: --enable-gpl --enable-version3 --enable-libgsm --enable- pthread s --enable-libvorbis --enable-libtheora --enable-libspeex --enable- libmp3lame -- enable-libopenjpeg --enable-libschroedinger --enable-libopencore_amrwb --enable- libopencore_amrnb --enable-libvpx --arch=x86 --enable-runtime-cpudetect --enable -libxvid --enable-libx264 --extra-libs='-lx264 -lpthread' --enable-librtmp --ext ra-libs='-lrtmp -lpolarssl -lws2_32 -lwinmm' --target-os=mingw32 --enable- avisyn th --cross-prefix=i686-mingw32- --cc='ccache i686-mingw32-gcc' --enable- memalign -hack libavutil 50.23. 0 / 50.23. 0 libavcore 0. 1. 0 / 0. 1. 0 libavcodec 52.84. 1 / 52.84. 1 libavformat 52.77. 0 / 52.77. 0 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.26. 1 / 1.26. 1 libswscale 0.11. 0 / 0.11. 0 Input #0, image2, from '11Bos20.bmp': Duration: 00:00:00.04, start: 0.000000, bitrate: N/A Stream #0.0: Video: bmp, bgr24, 300x200, 25 tbr, 25 tbn, 25 tbc [ffplay_output @ 01d52470] auto-inserting filter 'auto-inserted scaler 0' betwee n the filter 'src' and the filter 'out' [scale @ 01d527c0] w:300 h:200 fmt:bgr24 -> w:300 h:200 fmt:yuv420p flags:0x4 out.txt: 0.00 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 0.03 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 0.06 A-V: 0.000 s:0.0 aq= 0KB vq= 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aq= 0KB vq= 0KB sq= 0B f=0/0 5.00 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.03 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.06 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.09 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.12 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.16 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.19 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.22 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.25 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.28 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.31 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.34 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.38 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.41 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.44 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.47 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.50 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.53 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.56 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.59 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.62 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.66 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.69 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.72 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.75 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.78 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.81 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.84 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.88 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.91 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.94 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 5.97 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.00 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.03 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.06 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.09 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.12 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.16 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.19 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.22 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.25 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.28 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.31 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.34 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.38 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.41 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.44 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.47 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.50 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.53 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.56 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.59 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.62 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.66 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.69 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.72 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.75 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.78 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 6.88 A-V: 0.000 s:0.0 aq= 0KB vq= 0KB sq= 0B f=0/0 }}} {{{ Author: cehoyos Date: 2010-07-28.11:38:57 I have no idea if this a regression or not. }}} {{{ Author: scheutzo Date: 2010-07-31.21:07:50 I think it is annoying too. Have you tried: ffplay -nostats infile }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/166> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#36(avfilter:new): libavfilter: empty source buffer + yadif filters chain, polling for frames -> assertion failed
by FFmpeg 18 Nov '12

18 Nov '12

#36: libavfilter: empty source buffer + yadif filters chain, polling for frames -> assertion failed ----------------------+---------------------- Reporter: fpretto | Owner: michael Type: defect | Status: new Priority: normal | Component: avfilter Version: | Keywords: Blocked By: | Blocking: Reproduced: 0 | Analyzed: 0 ----------------------+---------------------- NB: the "nullsink" filter is used improperly as the last filter in the chain. The following self compiling sample gives: Assertion failed! Program: C:\Users\ceztko\Staging\target\Debug\Test.exe File: libavfilter/vf_yadif.c, Line 277 Expression: yadif->next Polling for frames with the empty source filter should, IMO, return 0, or be a specific switchable error (not a generic -1). {{{ #include <stdio.h> #include <libavfilter/avfilter.h> #include <libavfilter/avfiltergraph.h> #include <libavfilter/vsrc_buffer.h> int main(int argc, char* argv[]) { avfilter_register_all(); AVFilterGraph *filter_graph = avfilter_graph_alloc(); if (filter_graph == NULL) printf("error init"); AVFilter *buffer_filter = avfilter_get_by_name("buffer"); if (buffer_filter == NULL) printf("error init"); char args[256]; snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", 720, 576, PIX_FMT_YUV420P, 1, 25, 16, 15); int rv; // Buffer video source: the decoded frames from the codec will be inserted here AVFilterContext *buffer_filter_ctx; rv = avfilter_graph_create_filter(&buffer_filter_ctx, buffer_filter, "src", args, NULL, filter_graph); if (rv != 0) printf("error init"); AVFilter *sink_filter = avfilter_get_by_name("nullsink"); if (sink_filter == NULL) printf("error init"); // Null video sink: to terminate the filter chain AVFilterContext *sink_filter_ctx; rv = avfilter_graph_create_filter(&sink_filter_ctx, sink_filter, "out", NULL, NULL, filter_graph); if (rv != 0) printf("error init"); // Endpoints for the filter graph AVFilterInOut *buffer_filter_outputs = (AVFilterInOut *)av_mallocz(sizeof(AVFilterInOut)); if (buffer_filter_outputs == NULL) printf("error init"); buffer_filter_outputs->name = av_strdup("in"); buffer_filter_outputs->filter_ctx = buffer_filter_ctx; buffer_filter_outputs->pad_idx = 0; buffer_filter_outputs->next = NULL; AVFilterInOut *sink_filter_inputs = (AVFilterInOut *)av_mallocz(sizeof(AVFilterInOut)); if (sink_filter_inputs == NULL) printf("error init"); sink_filter_inputs->name = av_strdup("out"); sink_filter_inputs->filter_ctx = sink_filter_ctx; sink_filter_inputs->pad_idx = 0; sink_filter_inputs->next = NULL; rv = avfilter_graph_parse(filter_graph, "yadif=1-1", sink_filter_inputs, buffer_filter_outputs, NULL); if (rv != 0) printf("error init"); rv = avfilter_graph_config(filter_graph, NULL); if (rv != 0) printf("error init"); AVFilterLink *output_link = sink_filter_ctx->inputs[0]; rv = avfilter_poll_frame(output_link); printf("%d", rv); return 0; } }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/36> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#58(FFplay:new): sp5x playback regression
by FFmpeg 18 Nov '12

18 Nov '12

#58: sp5x playback regression --------------------------+--------------------- Reporter: ami_stuff | Owner: michael Type: defect | Status: new Priority: normal | Component: FFplay Version: unspecified | Keywords: Blocked By: | Blocking: Reproduced: 0 | Analyzed: 0 --------------------------+--------------------- seems like regression because of this patch (more precise line "av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);"): --- a/ffplay.c +++ b/ffplay.c @@ -31,6 +31,7 @@ #include "libavutil/imgutils.h" #include "libavutil/parseutils.h" #include "libavutil/samplefmt.h" +#include "libavutil/avassert.h" #include "libavformat/avformat.h" #include "libavdevice/avdevice.h" #include "libswscale/swscale.h" @@ -1582,6 +1583,8 @@ static int input_get_buffer(AVCodecContext *codec, AVFrame *pic) int i, w, h, stride[4]; unsigned edge; + av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE); + if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES) perms |= AV_PERM_NEG_LINESIZES; @@ -1664,8 +1667,8 @@ static int input_init(AVFilterContext *ctx, const char *args, void *opaque) codec = priv->is->video_st->codec; codec->opaque = ctx; if((codec->codec->capabilities & CODEC_CAP_DR1) - && codec->codec_id != CODEC_ID_SVQ1 //chroma alignment from lavfi is insufficient ) { + codec->flags |= CODEC_FLAG_EMU_EDGE; priv->use_dr1 = 1; codec->get_buffer = input_get_buffer; codec->release_buffer = input_release_buffer; http://samples.mplayerhq.hu/V-codecs/SP5x/sunplus_32bit_codec/img_0020.avi C:\>ffplay C:\img_0020.avi FFplay version git-N-28948-g9d4cb45, Copyright (c) 2003-2011 the FFmpeg develope rs built on Apr 8 2011 16:57:22 with gcc 4.5.2 configuration: --enable-gpl --enable-version3 --enable-runtime-cpudetect --ena ble-memalign-hack --arch=i686 --target-os=mingw32 --cross- prefix=i686-w64-mingw3 2- --enable-avisynth --enable-bzlib --enable-frei0r --enable-libopencore- amrnb - -enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable- libmp3la me --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libsp eex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --ena ble-libxavs --enable-libxvid --enable-zlib --extra- cflags=-I/home/kyle/software/ ffmpeg/external-libs/32-bit/include --extra- ldflags=-L/home/kyle/software/ffmpeg /external-libs/32-bit/lib --pkg-config=pkg-config libavutil 50. 40. 1 / 50. 40. 1 libavcodec 52.117. 0 / 52.117. 0 libavformat 52.106. 0 / 52.106. 0 libavdevice 52. 4. 0 / 52. 4. 0 libavfilter 1. 77. 1 / 1. 77. 1 libswscale 0. 13. 0 / 0. 13. 0 Input #0, avi, from 'C:\img_0020.avi': Duration: 00:00:10.26, start: 0.000000, bitrate: 311 kb/s Stream #0.0: Video: sp5x, yuvj420p, 320x240, 15 tbr, 15 tbn, 15 tbc [ffsink @ 01EB2480] auto-inserting filter 'auto-inserted scaler 0' between the f ilter 'src' and the filter 'out' [scale @ 01EB2700] w:320 h:240 fmt:yuvj420p -> w:320 h:240 fmt:yuv420p flags:0x4 Assertion codec->flags & 0x4000 failed at /home/kyle/software/ffmpeg/source/ffmp eg/ffplay.c:1586 This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. btw. this codec seems to be jpeg, so maybe supported max_lowres should be lowered to 3 too? -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/58> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#284(FFmpeg:new): Mpg format can not be converted to any other format
by FFmpeg 18 Nov '12

18 Nov '12

#284: Mpg format can not be converted to any other format --------------------------+--------------------- Reporter: yxmline | Owner: michael Type: defect | Status: new Priority: normal | Component: FFmpeg Version: unspecified | Keywords: Blocked By: | Blocking: Reproduced: 0 | Analyzed: 0 --------------------------+--------------------- Mpg format can not be converted to any other formatting tips are as follows Assertion avctx->thread_count > 1 failed at libavcodec/mpeg12.c:2343 -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/284> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#210(undetermined:new): bit depth loss with 'lossless' encoding!
by FFmpeg 06 Nov '12

06 Nov '12

#210: bit depth loss with 'lossless' encoding! --------------------------+----------------------- Reporter: Atrocia | Type: defect Status: new | Priority: critical Component: undetermined | Version: git Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+----------------------- I have 48 KHz / 24 bit audio files created by the Zoom H1 audio recorder; e.g.: $ mediainfo sample.WAV General Complete name : sample.WAV Format : Wave File size : 2.75 MiB Duration : 10s 0ms Overall bit rate : 2 304 Kbps Audio ID : 0 Format : PCM Format settings, Endianness : Little Codec ID : 1 Codec ID/Hint : Microsoft Duration : 10s 0ms Bit rate : 2 304 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Bit depth : 24 bits Stream size : 2.75 MiB (100%) When I convert them to flac format, they become 16 bit: $ ffmpeg -i sample.WAV sample.flac ... $ mediainfo sample.flac General Complete name : sample.flac Format : FLAC Format/Info : Free Lossless Audio Codec File size : 695 KiB Duration : 10s 0ms Overall bit rate : 569 Kbps Writing application : Lavf53.0.3 Audio Format : FLAC Format/Info : Free Lossless Audio Codec Duration : 10s 0ms Bit rate mode : Variable Bit rate : 563 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Bit depth : 16 bits Stream size : 687 KiB (99%) Writing library : Lavf53.0.3 ffmpeg (git-N-29954-gfc19379) throws this warning - I don't know if it's relevant: Incompatible sample format 's32' for codec 'flac', auto-selecting format 's16' The 'flac' tool, from the flac project, handles these files correctly: $ flac sample.WAV ... $ mediainfo sample.flac General Complete name : sample.flac Format : FLAC Format/Info : Free Lossless Audio Codec File size : 1.59 MiB Duration : 10s 0ms Overall bit rate : 1 336 Kbps Audio Format : FLAC Format/Info : Free Lossless Audio Codec Duration : 10s 0ms Bit rate mode : Variable Bit rate : 1 329 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Bit depth : 24 bits Stream size : 1.58 MiB (100%) Writing library : libFLAC 1.2.1 (UTC 2007-09-17) flac gives this warning - no idea if this is related to the one ffmpeg gives: sample.WAV: WARNING: legacy WAVE file has format type 1 but bits-per- sample=24 -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/210> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#180(undetermined:new): ffmpeg and ffserver different builds interraction
by FFmpeg 05 Nov '12

05 Nov '12

#180: ffmpeg and ffserver different builds interraction --------------------------+-------------------------- Reporter: andrixnet | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- First an end user question : has ffserver behaviour changed '''by design''' since ffmpeg-0.5 ? Since having problems with the latest ffserver, I build 0.7-rc1. Using : ffmpeg (on a win32) FFmpeg version SVN-r25857, Copyright (c) 2000-2010 the FFmpeg developers built on Dec 1 2010 04:07:58 with gcc 4.4.2 and ffserver 0.7-rc1 (on linux) results in : {{{ HTTP error 404 Not Found http://xxxxxxx:8090/feed1.ffm: Input/output error }}} and in the logs : {{{ Mon May 9 16:38:37 2011 File '/feed1.ffm' not found Mon May 9 16:38:37 2011 10.1.1.10 - - [GET] "/feed1.ffm HTTP/1.1" 404 149 }}} ---- I was also unable to use the same ffmpeg and ffserver 0.5 with the error "operation not permitted". (no, not a firewall issue). Then I tried ffmpeg (on win32) FFmpeg version SVN-r20428, Copyright (c) 2000-2009 Fabrice Bellard, et al. built on Nov 1 2009 04:03:50 with gcc 4.2.4 with ffserver 0.5 (linux) and it worked. ---- then I did a new test with the latest win32 build : ffmpeg version git-N-29638-g95f163b, Copyright (c) 2000-2011 the FFmpeg developers built on May 6 2011 12:50:01 with gcc 4.5.3 with ffserver-0.7-rc1 and got : [http @ 01E78D60] HTTP error 404 Not Found http://xxxxxxx:8090/feed1.ffm: Input/output error ---- I am not sure what aspects are to be considered ? 1) different versions for ffmpeg and ffserver should work, regardless of the build and/or platform 2) if the ffserver api has changed since ffmpeg-0.5 time, ffmpeg should report to the user a version incompatibility error message 3) if 2) is not the case, then it is indeed a bug ffmpeg being unable to talk to ffserver -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/180> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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