[FFmpeg-trac] #6158(ffmpeg:new): ffmpeg does not detect/decode MQA encoded FLAC properly

FFmpeg trac at avcodec.org
Sat Feb 18 11:36:25 EET 2017


#6158: ffmpeg does not detect/decode MQA encoded FLAC properly
-----------------------------------+--------------------------------------
             Reporter:  Nomis101   |                     Type:  defect
               Status:  new        |                 Priority:  normal
            Component:  ffmpeg     |                  Version:  git-master
             Keywords:  MQA, FLAC  |               Blocked By:
             Blocking:             |  Reproduced by developer:  0
Analyzed by developer:  0          |
-----------------------------------+--------------------------------------
 I have some FLAC encapsulated MQA files from a high-res online music
 dealer. I've tried to convert this files using ffmpeg to ALAC files (for
 iTunes). The original sample rate of the MQA is 96000 Hz. So the resulting
 ALAC file should be the same. But ffmpeg does not detect the MQA stream
 properly and just decodes the 48000 Hz FLAC into ALAC. I've used the
 latest git version, this is the logging console output:


 ffmpeg -v 9 -loglevel 99 -i /Users/Downloads/07\ After\ Midnight\ \(with\
 Special\ Guest\ JJ\ Cale\)\ \(Live\ in\ San\ Diego\).mqa.flac -vn -acodec
 alac /Users/Downloads/07\ After\ Midnight\ \(with\ Special\ Guest\ JJ\
 Cale\)\ \(Live\ in\ San\ Diego\).mqa.m4a
 ffmpeg version N-83545-g6baee21eb7 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with Apple LLVM version 8.1.0 (clang-802.0.27.2)
   configuration:
   libavutil      55. 47.100 / 55. 47.100
   libavcodec     57. 80.100 / 57. 80.100
   libavformat    57. 66.102 / 57. 66.102
   libavdevice    57.  2.100 / 57.  2.100
   libavfilter     6. 73.100 /  6. 73.100
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument '99'.
 Reading option '-i' ... matched as input url with argument
 '/Users/Downloads/07 After Midnight (with Special Guest JJ Cale) (Live in
 San Diego).mqa.flac'.
 Reading option '-vn' ... matched as option 'vn' (disable video) with
 argument '1'.
 Reading option '-acodec' ... matched as option 'acodec' (force audio codec
 ('copy' to copy stream)) with argument 'alac'.
 Reading option '/Users/Downloads/07 After Midnight (with Special Guest JJ
 Cale) (Live in San Diego).mqa.m4a' ... matched as output url.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument 9.
 Successfully parsed a group of options.
 Parsing a group of options: input url /Users/Downloads/07 After Midnight
 (with Special Guest JJ Cale) (Live in San Diego).mqa.flac.
 Successfully parsed a group of options.
 Opening an input file: /Users/Downloads/07 After Midnight (with Special
 Guest JJ Cale) (Live in San Diego).mqa.flac.
 [file @ 0x7fabbac0e540] Setting default whitelist 'file,crypto'
 Probing flac score:50 size:2048
 [flac @ 0x7fabbb800000] Format flac probed with size=2048 and score=50
 [flac @ 0x7fabbb800000] Before avformat_find_stream_info() pos: 457534
 bytes read:159021 seeks:1 nb_streams:2
 [mjpeg @ 0x7fabbb846200] marker=d8 avail_size_in_buf=123856
 [mjpeg @ 0x7fabbb846200] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fabbb846200] marker=e0 avail_size_in_buf=123854
 [mjpeg @ 0x7fabbb846200] marker parser used 16 bytes (128 bits)
 [mjpeg @ 0x7fabbb846200] marker=ed avail_size_in_buf=123836
 [mjpeg @ 0x7fabbb846200] marker parser used 55 bytes (440 bits)
 [mjpeg @ 0x7fabbb846200] marker=e2 avail_size_in_buf=123778
 [mjpeg @ 0x7fabbb846200] marker parser used 6331 bytes (50648 bits)
 [mjpeg @ 0x7fabbb846200] marker=c0 avail_size_in_buf=117444
 [mjpeg @ 0x7fabbb846200] Changing bps from 0 to 8
 [mjpeg @ 0x7fabbb846200] sof0: picture: 600x600
 [mjpeg @ 0x7fabbb846200] component 0 2:2 id: 0 quant:0
 [mjpeg @ 0x7fabbb846200] component 1 1:1 id: 1 quant:1
 [mjpeg @ 0x7fabbb846200] component 2 1:1 id: 2 quant:1
 [mjpeg @ 0x7fabbb846200] pix fmt id 22111100
 [mjpeg @ 0x7fabbb846200] marker parser used 17 bytes (136 bits)
 [mjpeg @ 0x7fabbb846200] marker=c4 avail_size_in_buf=117425
 [mjpeg @ 0x7fabbb846200] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fabbb846200] marker=c4 avail_size_in_buf=117392
 [mjpeg @ 0x7fabbb846200] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fabbb846200] marker=c4 avail_size_in_buf=117209
 [mjpeg @ 0x7fabbb846200] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fabbb846200] marker=c4 avail_size_in_buf=117176
 [mjpeg @ 0x7fabbb846200] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fabbb846200] marker=db avail_size_in_buf=116993
 [mjpeg @ 0x7fabbb846200] index=0
 [mjpeg @ 0x7fabbb846200] qscale[0]: 1
 [mjpeg @ 0x7fabbb846200] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x7fabbb846200] marker=db avail_size_in_buf=116924
 [mjpeg @ 0x7fabbb846200] index=1
 [mjpeg @ 0x7fabbb846200] qscale[1]: 2
 [mjpeg @ 0x7fabbb846200] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x7fabbb846200] marker=dd avail_size_in_buf=116855
 [mjpeg @ 0x7fabbb846200] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fabbb846200] escaping removed 686 bytes
 [mjpeg @ 0x7fabbb846200] marker=da avail_size_in_buf=116849
 [mjpeg @ 0x7fabbb846200] marker parser used 116163 bytes (929304 bits)
 [mjpeg @ 0x7fabbb846200] marker=d9 avail_size_in_buf=0
 [mjpeg @ 0x7fabbb846200] decode frame unused 0 bytes
 [flac @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 20 times
 [flac @ 0x7fabbb800000] All info found
 [flac @ 0x7fabbb800000] stream 0: start_time: 0.000 duration: 343.525
 [flac @ 0x7fabbb800000] stream 1: start_time: 0.000 duration: 343.525
 [flac @ 0x7fabbb800000] format: start_time: 0.000 duration: 343.525
 bitrate=1722 kb/s
 [flac @ 0x7fabbb800000] After avformat_find_stream_info() pos: 618302
 bytes read:322861 seeks:1 frames:2
 Input #0, flac, from '/Users/Downloads/07 After Midnight (with Special
 Guest JJ Cale) (Live in San Diego).mqa.flac':
   Metadata:
     TITLE           : After Midnight (with Special Guest JJ Cale)
     ARTIST          : Eric Clapton
     album_artist    : Eric Clapton
     ALBUM           : Live in San Diego (with Special Guest JJ Cale)
     track           : 7
     disc            : 1
     DATE            : 2016-09-30
     COMPOSER        : JJ Cale
     GENRE           : Rock
     COPYRIGHT       : 2016 EPC Enterprises LLP, under exclusive license to
 Reprise Records
     LABEL           : Reprise, Warner Brothers
     ISRC            : USRE11600308
     PUBLISHER       : 2016 EPC Enterprises LLP, under exclusive license to
 Reprise Records
     TRACKTOTAL      : 16
     DISCTOTAL       : 1
     ENCODER         : MQAEncode v1.1, 2.2.0+485 (0b66124),
 F8EC1703-7616-45E5-B81E-D60821434062, Oct 24 2016 23:01:32
     GRID            : A10302B0003533923W
     ICPN            : 093624917601
     MQAENCODER      : MQAEncode v1.1, 2.2.0+485 (0b66124),
 F8EC1703-7616-45E5-B81E-D60821434062, Oct 24 2016 23:01:32
     ORIGINALSAMPLERATE: 96000
     TOTALTRACKS     : 16
     REPLAYGAIN_REFERENCE_LOUDNESS: 89.0 dB
     REPLAYGAIN_TRACK_GAIN: -6.96 dB
     REPLAYGAIN_TRACK_PEAK: 0.99999952
     REPLAYGAIN_ALBUM_GAIN: -7.89 dB
     REPLAYGAIN_ALBUM_PEAK: 1.00000000
   Duration: 00:05:43.52, start: 0.000000, bitrate: 1722 kb/s
     Stream #0:0, 1, 1/48000: Audio: flac, 48000 Hz, stereo, s32 (24 bit)
     Side data:
       replaygain: track gain - -6.960000, track peak - 0.000023, album
 gain - -7.890000, album peak - 0.000023,
     Stream #0:1, 1, 1/90000: Video: mjpeg, 1 reference frame, yuvj420p(pc,
 bt470bg/unknown/unknown, center), 600x600 [SAR 72:72 DAR 1:1], 0/1, 90k
 tbr, 90k tbn, 90k tbc
     Metadata:
       comment         : Cover (front)
 Successfully opened the file.
 Parsing a group of options: output url /Users/Downloads/07 After Midnight
 (with Special Guest JJ Cale) (Live in San Diego).mqa.m4a.
 Applying option vn (disable video) with argument 1.
 Applying option acodec (force audio codec ('copy' to copy stream)) with
 argument alac.
 Successfully parsed a group of options.
 Opening an output file: /Users/Downloads/07 After Midnight (with Special
 Guest JJ Cale) (Live in San Diego).mqa.m4a.
 [file @ 0x7fabbad02620] Setting default whitelist 'file,crypto'
 Successfully opened the file.
 detected 8 logical cores
 [graph_0_in_0_0 @ 0x7fabbaf003a0] Setting 'time_base' to value '1/48000'
 [graph_0_in_0_0 @ 0x7fabbaf003a0] Setting 'sample_rate' to value '48000'
 [graph_0_in_0_0 @ 0x7fabbaf003a0] Setting 'sample_fmt' to value 's32'
 [graph_0_in_0_0 @ 0x7fabbaf003a0] Setting 'channel_layout' to value '0x3'
 [graph_0_in_0_0 @ 0x7fabbaf003a0] tb:1/48000 samplefmt:s32
 samplerate:48000 chlayout:0x3
 [format_out_0_0 @ 0x7fabbaf008e0] Setting 'sample_fmts' to value
 's32p|s16p'
 [format_out_0_0 @ 0x7fabbaf008e0] Setting 'channel_layouts' to value
 '0x4|0x3|0x7|0x107|0x37|0x3f|0x13f|0xff'
 [format_out_0_0 @ 0x7fabbaf008e0] auto-inserting filter 'auto_resampler_0'
 between the filter 'Parsed_anull_0' and the filter 'format_out_0_0'
 [AVFilterGraph @ 0x7fabbad00160] query_formats: 4 queried, 6 merged, 3
 already done, 0 delayed
 [auto_resampler_0 @ 0x7fabbd2000c0] picking s32p out of 2 ref:s32
 [auto_resampler_0 @ 0x7fabbd2000c0] [SWR @ 0x7fabbb89d400] Using s32p
 internally between filters
 [auto_resampler_0 @ 0x7fabbd2000c0] ch:2 chl:stereo fmt:s32 r:48000Hz ->
 ch:2 chl:stereo fmt:s32p r:48000Hz
 Output #0, ipod, to '/Users/Downloads/07 After Midnight (with Special
 Guest JJ Cale) (Live in San Diego).mqa.m4a':
   Metadata:
     TITLE           : After Midnight (with Special Guest JJ Cale)
     ARTIST          : Eric Clapton
     album_artist    : Eric Clapton
     ALBUM           : Live in San Diego (with Special Guest JJ Cale)
     track           : 7
     disc            : 1
     DATE            : 2016-09-30
     COMPOSER        : JJ Cale
     GENRE           : Rock
     COPYRIGHT       : 2016 EPC Enterprises LLP, under exclusive license to
 Reprise Records
     LABEL           : Reprise, Warner Brothers
     ISRC            : USRE11600308
     PUBLISHER       : 2016 EPC Enterprises LLP, under exclusive license to
 Reprise Records
     TRACKTOTAL      : 16
     DISCTOTAL       : 1
     REPLAYGAIN_ALBUM_PEAK: 1.00000000
     GRID            : A10302B0003533923W
     ICPN            : 093624917601
     MQAENCODER      : MQAEncode v1.1, 2.2.0+485 (0b66124),
 F8EC1703-7616-45E5-B81E-D60821434062, Oct 24 2016 23:01:32
     ORIGINALSAMPLERATE: 96000
     TOTALTRACKS     : 16
     REPLAYGAIN_REFERENCE_LOUDNESS: 89.0 dB
     REPLAYGAIN_TRACK_GAIN: -6.96 dB
     REPLAYGAIN_TRACK_PEAK: 0.99999952
     REPLAYGAIN_ALBUM_GAIN: -7.89 dB
     encoder         : Lavf57.66.102
     Stream #0:0, 0, 1/48000: Audio: alac (alac / 0x63616C61), 48000 Hz,
 stereo, s32p (24 bit), 128 kb/s
     Metadata:
       encoder         : Lavc57.80.100 alac
 Stream mapping:
   Stream #0:0 -> #0:0 (flac (native) -> alac (native))
 Press [q] to stop, [?] for help
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 2 times
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2 times
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2 times
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2 times
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2 times
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2 times
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2 times
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2 times
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2219 times
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2216 times
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2264 times
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2228 times
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 2219 times
 [NULL @ 0x7fabbb808c00] sample/frame number mismatch in adjacent frames
     Last message repeated 875 times
 [flac @ 0x7fabbb800000] first_dts 0 not matching first dts 16453632 (pts
 16453632, duration 4096) in the queue
 No more output streams to write to, finishing.
 size=   72545kB time=00:05:43.55 bitrate=1729.8kbits/s speed= 127x
 video:0kB audio:72528kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.024329%
 Input file #0 (/Users/Downloads/07 After Midnight (with Special Guest JJ
 Cale) (Live in San Diego).mqa.flac):
   Input stream #0:0 (audio): 4026 packets read (73487373 bytes); 4026
 frames decoded (16489182 samples);
   Input stream #0:1 (video): 1 packets read (123858 bytes);
   Total: 4027 packets (73611231 bytes) demuxed
 Output file #0 (/Users/Downloads/07 After Midnight (with Special Guest JJ
 Cale) (Live in San Diego).mqa.m4a):
   Output stream #0:0 (audio): 4026 frames encoded (16489182 samples); 4026
 packets muxed (74268327 bytes);
   Total: 4026 packets (74268327 bytes) muxed
 4026 frames successfully decoded, 0 decoding errors
 [AVIOContext @ 0x7fabbad02720] Statistics: 28 seeks, 4048 writeouts
 [AVIOContext @ 0x7fabbac0e920] Statistics: 73646394 bytes read, 1 seeks


 (because the music file is under copyright, I can not attach a sample
 here)

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6158>
FFmpeg <https://ffmpeg.org>
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