id summary reporter owner description type status priority component version resolution keywords cc blockedby blocking reproduced analyzed 1811 Transport stream with intentional garbage in the beginning is detected as program stream cehoyos "http://ffmpeg.org/pipermail/ffmpeg-user/2012-October/010297.html Transport streams recorded with Belson TV sets (on USB) start with garbage, FFmpeg detects a program stream instead of a transport stream. {{{ $ ffmpeg -i misdetectionps.ts ffmpeg version N-45422-g6254ffe Copyright (c) 2000-2012 the FFmpeg developers built on Oct 13 2012 12:00:13 with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 51. 76.100 / 51. 76.100 libavcodec 54. 65.100 / 54. 65.100 libavformat 54. 32.100 / 54. 32.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 19.102 / 3. 19.102 libswscale 2. 1.101 / 2. 1.101 libswresample 0. 16.100 / 0. 16.100 libpostproc 52. 1.100 / 52. 1.100 [mpeg @ 0x3201280] Format mpeg detected only with low score of 25, misdetection possible! [mpeg @ 0x3201280] probed stream 1 failed [mpeg @ 0x3201280] probed stream 5 failed [mpeg @ 0x3201280] probed stream 6 failed [mpeg @ 0x3201280] probed stream 7 failed [mpeg @ 0x3201280] Invalid timestamps stream=1, pts=852695377, dts=5539292435, size=34318 [mp1 @ 0x3248ca0] Header missing Last message repeated 3 times [mpeg @ 0x3201280] Invalid timestamps stream=2, pts=2897908561, dts=4977112148, size=30969 [mpeg @ 0x3201280] DTS discontinuity in stream 2: packet 56 with DTS 2897947441, packet 57 with DTS 3620529164 [mp1 @ 0x3248ca0] Header missing [mpeg @ 0x3201280] Could not find codec parameters for stream 1 (Video: none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpeg @ 0x3201280] decoding for stream 4 failed [mpeg @ 0x3201280] Could not find codec parameters for stream 4 (Audio: mp1, 0 channels, s16): unspecified frame size Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpeg @ 0x3201280] Could not find codec parameters for stream 5 (Video: none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpeg @ 0x3201280] Could not find codec parameters for stream 6 (Video: none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpeg @ 0x3201280] Could not find codec parameters for stream 7 (Video: none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options [NULL @ 0x323e280] start time is not set in estimate_timings_from_pts [NULL @ 0x325ffa0] start time is not set in estimate_timings_from_pts [NULL @ 0x3290b20] start time is not set in estimate_timings_from_pts [NULL @ 0x32c0600] start time is not set in estimate_timings_from_pts Input #0, mpeg, from 'misdetectionps.ts': Duration: 08:32:34.86, start: 9474.393078, bitrate: 0 kb/s Stream #0:0[0x1c2]: Audio: mp2, 48000 Hz, stereo, s16, 192 kb/s Stream #0:1[0x1e1]: Video: none, 90k tbr, 90k tbn Stream #0:2[0x1c0]: Audio: mp3, 48000 Hz, stereo, s16, 192 kb/s Stream #0:3[0x20]: Subtitle: dvd_subtitle Stream #0:4[0x1c5]: Audio: mp1, 0 channels, s16 Stream #0:5[0x1eb]: Video: none, 90k tbr, 90k tbn Stream #0:6[0x1ea]: Video: none, 90k tbr, 90k tbn Stream #0:7[0x1e0]: Video: none, 90k tbr, 90k tbn At least one output file must be specified }}} The sample gets detected correctly with ffmpeg -f mpegts, I will open another ticket for the image corruption shown on transcoding the sample. {{{ $ ffmpeg -f mpegts -i misdetectionps.ts ffmpeg version N-45422-g6254ffe Copyright (c) 2000-2012 the FFmpeg developers built on Oct 13 2012 12:00:13 with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 51. 76.100 / 51. 76.100 libavcodec 54. 65.100 / 54. 65.100 libavformat 54. 32.100 / 54. 32.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 19.102 / 3. 19.102 libswscale 2. 1.101 / 2. 1.101 libswresample 0. 16.100 / 0. 16.100 libpostproc 52. 1.100 / 52. 1.100 [mpegts @ 0x332b2a0] Could not detect TS packet size, defaulting to non-FEC/DVHS [mpeg2video @ 0x334da40] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x332b2a0] PES packet size mismatch [mpeg2video @ 0x334da40] mpeg_decode_postinit() failure [mpeg2video @ 0x334da40] skipped MB in I frame at 5 7 [mpeg2video @ 0x334da40] ac-tex damaged at 5 19 [mpeg2video @ 0x334da40] Warning MVs not available [mpeg2video @ 0x334da40] concealing 90 DC, 90 AC, 90 MV errors in I frame [mpegts @ 0x332b2a0] PES packet size mismatch Last message repeated 6 times [mpegts @ 0x332b2a0] Could not find codec parameters for stream 4 (Unknown: none ([5][0][0][0] / 0x0005)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x332b2a0] Could not find codec parameters for stream 5 (Unknown: none ([11][0][0][0] / 0x000B)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x332b2a0] Could not find codec parameters for stream 6 (Unknown: none ([12][0][0][0] / 0x000C)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x332b2a0] Could not find codec parameters for stream 7 (Unknown: none ([255][0][0][0] / 0x00FF)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x332b2a0] Could not find codec parameters for stream 8 (Unknown: none ([255][0][0][0] / 0x00FF)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [NULL @ 0x336de60] start time is not set in estimate_timings_from_pts [NULL @ 0x3374320] start time is not set in estimate_timings_from_pts [NULL @ 0x337a7e0] start time is not set in estimate_timings_from_pts [NULL @ 0x3380ca0] start time is not set in estimate_timings_from_pts [NULL @ 0x3387160] start time is not set in estimate_timings_from_pts [mpegts @ 0x332b2a0] PES packet size mismatch Last message repeated 2 times Input #0, mpegts, from 'misdetectionps.ts': Duration: 00:00:04.36, start: 40225.173822, bitrate: 4689 kb/s Program 257 Metadata: service_name : France 2 service_provider: GR1 A Program 260 Metadata: service_name : France 5 service_provider: GR1 A Stream #0:0[0x140]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 15000 kb/s, 25.25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x14a](fra): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 192 kb/s Stream #0:2[0x14b](qad): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 192 kb/s Stream #0:3[0x154](fra): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) (hearing impaired) Stream #0:4[0x172]: Unknown: none ([5][0][0][0] / 0x0005) Stream #0:5[0x173]: Unknown: none ([11][0][0][0] / 0x000B) Stream #0:6[0x174]: Unknown: none ([12][0][0][0] / 0x000C) Stream #0:7[0x175]: Unknown: none ([255][0][0][0] / 0x00FF) Stream #0:8[0x176]: Unknown: none ([255][0][0][0] / 0x00FF) Program 261 Metadata: service_name : ?France [0m service_provider: GR1 A Program 262 Metadata: service_name : LCP service_provider: GR1 A Program 282 Metadata: service_name : France 3 service_provider: Nat Program 368 Metadata: service_name : TLT service_provider: Scopus Network Technologies At least one output file must be specified }}}" defect closed normal avformat git-master fixed mpegts mpegps 1 0