#2223(undetermined:new): ffmpeg converts dvb_teletext to dvb_subtitle when -c copy is used
#2223: ffmpeg converts dvb_teletext to dvb_subtitle when -c copy is used -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: new Priority: normal | Component: Version: | undetermined unspecified | Keywords: Blocked By: | Blocking: Reproduced by developer: 0 | Analyzed by developer: 0 -------------------------------------+------------------------------------- Summary of the bug: When ffmpeg is instructed to do "-c copy" on input stream, it unexpectedly converts one of the input streams of type dvb_teletext into dvb_subtitle. More info can be found here: http://ffmpeg.gusari.org/viewtopic.php?f=16&t=811&p=1527 How to reproduce: The original scenario, where the possible bug was discovered, used a command line like this: {{{ ffmpeg -i udp://234.5.245.105:20000 -map 0 -codec copy -f mpegts stream.ts ffmpeg version 1.1.1 Copyright (c) 2000-2013 the FFmpeg developers built on Jan 21 2013 14:57:54 with gcc 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab --enable-filter=movie --enable-static --enable-shared --enable-libfreetype --enable-libaacplus libavutil 52. 13.100 / 52. 13.100 libavcodec 54. 86.100 / 54. 86.100 libavformat 54. 59.106 / 54. 59.106 libavdevice 54. 3.102 / 54. 3.102 libavfilter 3. 32.100 / 3. 32.100 libswscale 2. 1.103 / 2. 1.103 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 2.100 / 52. 2.100 [mpegts @ 0x1b5c820] Unable to seek back to the start [mpeg2video @ 0x1ba2220] 0x0 is invalid Last message repeated 15 times [mpegts @ 0x1b5c820] max_analyze_duration 5000000 reached at 5016000 [mpegts @ 0x1b5c820] Estimating duration from bitrate, this may be inaccurate Input #0, mpegts, from 'udp://234.5.245.105:20000': Duration: N/A, start: 93705.929667, bitrate: 224 kb/s Program 140 Metadata: service_name : ANTENA 3 service_provider: EtherTV Stream #0:0[0x137](spa): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) Stream #0:1[0x130](und): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s Stream #0:2[0x12f](spa): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 128 kb/s Stream #0:3[0x12e](spa): [b]Subtitle: dvb_teletext[/b] ([6][0][0][0] / 0x0006) Stream #0:4[0x12d]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 704x576 [SAR 16:11 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Output #0, mpegts, to 'stream.ts': Metadata: encoder : Lavf54.59.106 Stream #0:0(spa): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) Stream #0:1(und): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, 96 kb/s Stream #0:2(spa): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, 128 kb/s Stream #0:3(spa): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006) Stream #0:4: Video: mpeg2video ([2][0][0][0] / 0x0002), yuv420p, 704x576 [SAR 16:11 DAR 16:9], q=2-31, 25 fps, 90k tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Stream #0:2 -> #0:2 (copy) Stream #0:3 -> #0:3 (copy) Stream #0:4 -> #0:4 (copy) Press [q] to stop, [?] for help frame= 914 fps= 29 q=-1.0 Lsize= 17315kB time=00:00:37.79 bitrate=3753.4kbits/s video:13770kB audio:1013kB subtitle:1173 global headers:0kB muxing overhead 8.519125% Received signal 2: terminating. }}} but when checked with ffprobe, the result was: {{{ ffprobe -i stream.ts ffprobe version 1.1.1 Copyright (c) 2007-2013 the FFmpeg developers built on Jan 21 2013 14:57:54 with gcc 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab --enable-filter=movie --enable-static --enable-shared --enable-libfreetype --enable-libaacplus libavutil 52. 13.100 / 52. 13.100 libavcodec 54. 86.100 / 54. 86.100 libavformat 54. 59.106 / 54. 59.106 libavdevice 54. 3.102 / 54. 3.102 libavfilter 3. 32.100 / 3. 32.100 libswscale 2. 1.103 / 2. 1.103 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 2.100 / 52. 2.100 [mpegts @ 0xac2ca0] max_analyze_duration 5000000 reached at 5016000 [NULL @ 0xac6e60] start time is not set in estimate_timings_from_pts [NULL @ 0xac8be0] start time is not set in estimate_timings_from_pts Input #0, mpegts, from 'stream.ts': Duration: 00:00:37.47, start: 1.760378, bitrate: 3785 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100](spa): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) Stream #0:1[0x101](und): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 96 kb/s Stream #0:2[0x102](spa): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 128 kb/s Stream #0:3[0x103](spa): [b]Subtitle: dvb_subtitle[/b] ([6][0][0][0] / 0x0006) Stream #0:4[0x104]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 704x576 [SAR 16:11 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: ffmpeg converts dvb_teletext to dvb_subtitle when -c copy is used -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: new Priority: normal | Component: Version: unspecified | undetermined Keywords: | Resolution: Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- Comment (by cehoyos): Is this only reproducible with a network input stream or also with file input? -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:1> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: ffmpeg converts dvb_teletext to dvb_subtitle when -c copy is used -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: new Priority: normal | Component: Version: unspecified | undetermined Keywords: | Resolution: Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- Comment (by Cigaes): AFAICS, this is reproducible with the sample you uploaded for ticket 2086 [http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket2086/]. {{{ Input #0, mpegts, from '/tmp/teletextsubtitles.ts.part': Duration: 00:00:15.36, start: 0.091256, bitrate: 15069 kb/s Program 137 Stream #0:0[0x30]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x40](ita): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 384 kb/s Stream #0:2[0x41](und): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 384 kb/s Stream #0:3[0x6a](ita): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006) Output #0, mpegts, to '/tmp/out.ts': Metadata: encoder : Lavf54.61.104 Stream #0:0(ita): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006) Stream mapping: Stream #0:3 -> #0:0 (copy) }}} {{{ Input #0, mpegts, from '/tmp/out.ts': Duration: N/A, bitrate: N/A Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100](ita): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) }}} I suspect this is a muxer problem: ffmpeg does not recode the subtitle packets, it only incorrectly writes the nature of the stream. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:2> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: ffmpeg converts dvb_teletext to dvb_subtitle when -c copy is used -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Changes (by cehoyos): * keywords: => mpegts dvb_teletext * status: new => open * version: unspecified => git-master * component: undetermined => avformat * reproduced: 0 => 1 Comment: Attached patch does not really help. {{{ $ ffmpeg -i teletextsubtitles.ts -vn -an -scodec copy out.ts ffmpeg version N-49553-g13eb9fc Copyright (c) 2000-2013 the FFmpeg developers built on Feb 3 2013 14:58:47 with gcc 4.7 (SUSE Linux) configuration: --enable-gpl --disable-indev=jack libavutil 52. 17.100 / 52. 17.100 libavcodec 54. 91.100 / 54. 91.100 libavformat 54. 61.104 / 54. 61.104 libavdevice 54. 3.103 / 54. 3.103 libavfilter 3. 35.100 / 3. 35.100 libswscale 2. 2.100 / 2. 2.100 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 2.100 / 52. 2.100 [h264 @ 0x286dee0] non-existing SPS 0 referenced in buffering period [h264 @ 0x286dee0] non-existing PPS referenced [h264 @ 0x286dee0] non-existing SPS 0 referenced in buffering period [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] no frame! ... [h264 @ 0x286dee0] non-existing SPS 0 referenced in buffering period [h264 @ 0x286dee0] non-existing PPS referenced [h264 @ 0x286dee0] non-existing SPS 0 referenced in buffering period [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] non-existing PPS 0 referenced [h264 @ 0x286dee0] decode_slice_header error [h264 @ 0x286dee0] no frame! [mpegts @ 0x2869fc0] Stream #3: not enough frames to estimate rate; consider increasing probesize [NULL @ 0x286fc60] start time is not set in estimate_timings_from_pts [mpegts @ 0x2869fc0] PES packet size mismatch Last message repeated 1 times Input #0, mpegts, from 'teletextsubtitles.ts': Duration: 00:00:55.32, start: 0.091256, bitrate: 14610 kb/s Program 137 Stream #0:0[0x30]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x40](ita): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 384 kb/s Stream #0:2[0x41](und): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 384 kb/s Stream #0:3[0x6a](ita): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006) Output #0, mpegts, to 'out.ts': Metadata: encoder : Lavf54.61.104 Stream #0:0(ita): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006) Stream mapping: Stream #0:3 -> #0:0 (copy) Press [q] to stop, [?] for help size= 264kB time=00:00:00.00 bitrate=N/A video:0kB audio:0kB subtitle:185 global headers:0kB muxing overhead 42.903811% }}} {{{ $ ffmpeg -i out.ts ffmpeg version N-49553-g13eb9fc Copyright (c) 2000-2013 the FFmpeg developers built on Feb 3 2013 14:58:47 with gcc 4.7 (SUSE Linux) configuration: --enable-gpl --disable-indev=jack libavutil 52. 17.100 / 52. 17.100 libavcodec 54. 91.100 / 54. 91.100 libavformat 54. 61.104 / 54. 61.104 libavdevice 54. 3.103 / 54. 3.103 libavfilter 3. 35.100 / 3. 35.100 libswscale 2. 2.100 / 2. 2.100 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 2.100 / 52. 2.100 [NULL @ 0x1e98720] start time is not set in estimate_timings_from_pts Input #0, mpegts, from 'out.ts': Duration: N/A, bitrate: N/A Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100](ita): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) At least one output file must be specified }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:3> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:4> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by cehoyos): Please tell the "true" OP that mplayer -dumpstream is the recommended way of recording a transport stream from dvb (imo), it allows to save all wanted streams / pids. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:5> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by cehoyos): To the original reporter: There is a mailing list where user questions are answered: http://ffmpeg.org/mailman/listinfo/ffmpeg-user Concerning your problem: To dump transport streams, do not use FFmpeg's remuxing function (it is not made for this task), instead use (for example) mplayer -dumpstream. (I am sure there are other possibilities, this is how I do it.) In case my comment:3 was not clear: The attached patch does *not* help, it does *not* fix your issue. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:6> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by milan2655): I added two files with component section of PMT for teletext. One is from original stream (PMT - teletext OK.txt) and second one (PMT - teletext NOT OK.txt) is from stream that is generated with ffmpeg with patchdvbteletext applied. The patchdvbteletext added two additional teletext_list entries with strange ISO_639_language_code. Teletext generated by ffmpeg with patchdvbteletext applied cannot be viewed on any device. I'm using DVB inspector as teletext viewer. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:7> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by cehoyos): I deleted the attachment, sorry that it caused so much confusion, I will try to avoid attaching wip in the future. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:8> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by milan2655): You were on good way of solving this problem. Who and how will solve teletex problem ? Your patch was OK. It changed descriptor from 59 to 56 for teletext, but added additional stuff. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:9> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by cehoyos): Replying to [comment:9 milan2655]:
Who and how will solve teletex problem ?
Patch definitely welcome! -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:10> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by dnk): I attached patch which solve the teletext problem. For testting I used this command: $ ffmpeg -i ./teletextsubtitles.ts -map 0 -codec copy -f mpegts out.ts -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:11> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by cehoyos): Thank you for working on this, please send the patch to ffmpeg-devel where it will receive more attention. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2223#comment:12> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by mrlika): Fixed by Serhii Marchuk in 1d073850 and 2ebee19e -- Ticket URL: <https://trac.ffmpeg.org/ticket/2223#comment:13> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#2223: Muxing dvb_teletext in mpegts does not work -------------------------------------+------------------------------------- Reporter: burek | Owner: Type: defect | Status: closed Priority: normal | Component: avformat Version: git-master | Resolution: fixed Keywords: mpegts | Blocked By: dvb_teletext | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Changes (by cus): * status: open => closed * resolution: => fixed -- Ticket URL: <https://trac.ffmpeg.org/ticket/2223#comment:14> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
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