Opened 7 years ago
Last modified 7 years ago
#7002 new defect
reading wav file from a pipe does not obey the probesize setting
| Reported by: | Arthur Kantor | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avformat |
| Version: | git-master | Keywords: | wav |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug:
It seems that when a .wav file is read from stdin, the codec probe does not finish until is sees >100kB of data, or EOS.
Setting the probesize to something smaller doesn't help.
How to reproduce:
ffmpeg version: 3.3.2-static http://johnvansickle.com/ffmpeg/ (see log below) built on: gcc 5.4.1 (Debian 5.4.1-11) 20170519
% (pv -f -c -L 32000 countToTwelve.wav | ./ffmpeg -v 9 -loglevel 99 -i - -analyzeduration 200 -probesize 200 countToTwelve.flac) |& tr '\r' '\n'
Any WAV audio will reproduce.
The (pv -f -c -L 32000 countToTwelve.wav | ... ) |& tr '\r' '\n'
pipes the 16khz countToTwelve.wav file at realtime into ffmpeg, and prints progress lines like
375KiB 0:00:12 [31.4KiB/s] [=================> ] 55% ETA 0:00:09}
Here's the output:
ffmpeg version 3.3.2-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.1 (Debian 5.4.1-11) 20170519
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-5 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
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 '-'.
Reading option '-analyzeduration' ... matched as AVOption 'analyzeduration' with argument '200'.
Reading option '-probesize' ... matched as AVOption 'probesize' with argument '200'.
Reading option 'countToTwelve.flac' ... 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 -.
Successfully parsed a group of options.
Opening an input file: -.
[NULL @ 0x439d6e0] Opening 'pipe:' for reading
[pipe @ 0x439de80] Setting default whitelist 'crypto'
Probing wav score:99 size:2048
[wav @ 0x439d6e0] Format wav probed with size=2048 and score=99
31.2KiB 0:00:01 [28.8KiB/s] [> ] 4% ETA 0:00:20
62.5KiB 0:00:02 [31.4KiB/s] [==> ] 9% ETA 0:00:19
[wav @ 0x439d6e0] Before avformat_find_stream_info() pos: 44 bytes read:67200 seeks:0 nb_streams:1
[wav @ 0x439d6e0] probing stream 0 pp:32
[wav @ 0x439d6e0] probing stream 0 pp:31
Probing mp3 score:1 size:8192
[wav @ 0x439d6e0] Probe with size=8192, packets=2470 detected mp3 with score=1
[wav @ 0x439d6e0] probing stream 0 pp:30
[wav @ 0x439d6e0] probing stream 0 pp:29
Probing mp3 score:1 size:16384
[wav @ 0x439d6e0] Probe with size=16384, packets=2472 detected mp3 with score=1
[wav @ 0x439d6e0] probing stream 0 pp:28
[wav @ 0x439d6e0] probing stream 0 pp:27
[wav @ 0x439d6e0] probing stream 0 pp:26
[wav @ 0x439d6e0] probing stream 0 pp:25
[wav @ 0x439d6e0] probing stream 0 pp:24
[wav @ 0x439d6e0] probing stream 0 pp:23
[wav @ 0x439d6e0] probing stream 0 pp:22
[wav @ 0x439d6e0] probing stream 0 pp:21
[wav @ 0x439d6e0] probing stream 0 pp:20
[wav @ 0x439d6e0] probing stream 0 pp:19
[wav @ 0x439d6e0] probing stream 0 pp:18
[wav @ 0x439d6e0] probing stream 0 pp:17
[wav @ 0x439d6e0] probing stream 0 pp:16
[wav @ 0x439d6e0] probing stream 0 pp:15
[wav @ 0x439d6e0] probing stream 0 pp:14
[wav @ 0x439d6e0] probing stream 0 pp:13
[wav @ 0x439d6e0] probing stream 0 pp:12
[wav @ 0x439d6e0] probing stream 0 pp:11
[wav @ 0x439d6e0] probing stream 0 pp:10
93.8KiB 0:00:03 [31.4KiB/s] [===> ] 13% ETA 0:00:18
[wav @ 0x439d6e0] probing stream 0 pp:9
[wav @ 0x439d6e0] probing stream 0 pp:8
[wav @ 0x439d6e0] probing stream 0 pp:7
[wav @ 0x439d6e0] probing stream 0 pp:6
[wav @ 0x439d6e0] probing stream 0 pp:5
[wav @ 0x439d6e0] probing stream 0 pp:4
[wav @ 0x439d6e0] probing stream 0 pp:3
[wav @ 0x439d6e0] probing stream 0 pp:2
125KiB 0:00:04 [31.4KiB/s] [=====> ] 18% ETA 0:00:17
[wav @ 0x439d6e0] probing stream 0 pp:1
[wav @ 0x439d6e0] probed stream 0
[wav @ 0x439d6e0] parser not found for codec pcm_s16le, packets or times may be invalid.
156KiB 0:00:05 [31.4KiB/s] [======> ] 22% ETA 0:00:16
187KiB 0:00:06 [31.4KiB/s] [========> ] 27% ETA 0:00:15
[wav @ 0x439d6e0] All info found
[wav @ 0x439d6e0] stream 0: start_time: -576460752303423.500 duration: -576460752303423.500
[wav @ 0x439d6e0] format: start_time: -9223372036854.775 duration: -9223372036854.775 bitrate=512 kb/s
[wav @ 0x439d6e0] After avformat_find_stream_info() pos: 204844 bytes read:208000 seeks:0 frames:50
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'pipe:':
Duration: N/A, bitrate: 512 kb/s
Stream #0:0, 50, 1/16000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, stereo, s16, 512 kb/s
Successfully opened the file.
Parsing a group of options: output url countToTwelve.flac.
Successfully parsed a group of options.
Opening an output file: countToTwelve.flac.
[file @ 0x43da0a0] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> flac (native))
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
detected 8 logical cores
[graph_0_in_0_0 @ 0x43bdc00] Setting 'time_base' to value '1/16000'
[graph_0_in_0_0 @ 0x43bdc00] Setting 'sample_rate' to value '16000'
[graph_0_in_0_0 @ 0x43bdc00] Setting 'sample_fmt' to value 's16'
[graph_0_in_0_0 @ 0x43bdc00] Setting 'channel_layout' to value '0x3'
[graph_0_in_0_0 @ 0x43bdc00] tb:1/16000 samplefmt:s16 samplerate:16000 chlayout:0x3
[format_out_0_0 @ 0x43bda80] Setting 'sample_fmts' to value 's16|s32'
[AVFilterGraph @ 0x43a96e0] query_formats: 4 queried, 9 merged, 0 already done, 0 delayed
[flac @ 0x43bafe0] compression: 5
[flac @ 0x43bafe0] lpc type: Levinson-Durbin recursion with Welch window
[flac @ 0x43bafe0] prediction order: 1, 8
[flac @ 0x43bafe0] order method: estimate
[flac @ 0x43bafe0] partition order: 0, 8
[flac @ 0x43bafe0] block size: 1152
[flac @ 0x43bafe0] lpc precision: 15
Output #0, flac, to 'countToTwelve.flac':
Metadata:
encoder : Lavf57.71.100
Stream #0:0, 0, 1/16000: Audio: flac, 16000 Hz, stereo, s16, 128 kb/s
Metadata:
encoder : Lavc57.89.100 flac
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
218KiB 0:00:07 [31.4KiB/s] [=========> ] 32% ETA 0:00:14
size= 138kB time=00:00:03.45 bitrate= 327.9kbits/s speed=6.44x
size= 151kB time=00:00:03.81 bitrate= 324.1kbits/s speed=3.54x
250KiB 0:00:08 [31.4KiB/s] [===========> ] 36% ETA 0:00:13
size= 158kB time=00:00:04.03 bitrate= 321.5kbits/s speed=2.49x
size= 171kB time=00:00:04.32 bitrate= 323.9kbits/s speed= 2x
281KiB 0:00:09 [31.4KiB/s] [============> ] 41% ETA 0:00:12
size= 182kB time=00:00:04.60 bitrate= 322.9kbits/s speed=1.65x
size= 192kB time=00:00:04.89 bitrate= 320.9kbits/s speed=1.47x
312KiB 0:00:10 [31.4KiB/s] [==============> ] 45% ETA 0:00:11
size= 205kB time=00:00:05.18 bitrate= 323.6kbits/s speed=1.34x
343KiB 0:00:11 [31.5KiB/s] [================> ] 50% ETA 0:00:10
size= 217kB time=00:00:05.47 bitrate= 324.1kbits/s speed=1.24x
size= 227kB time=00:00:05.76 bitrate= 323.1kbits/s speed=1.16x
375KiB 0:00:12 [31.4KiB/s] [=================> ] 55% ETA 0:00:09
size= 237kB time=00:00:05.97 bitrate= 324.8kbits/s speed=1.09x
size= 247kB time=00:00:06.26 bitrate= 323.5kbits/s speed=1.04x
406KiB 0:00:13 [31.4KiB/s] [===================> ] 59% ETA 0:00:08
size= 257kB time=00:00:06.55 bitrate= 321.4kbits/s speed=0.994x
size= 269kB time=00:00:06.84 bitrate= 321.9kbits/s speed=0.959x
437KiB 0:00:14 [31.4KiB/s] [====================> ] 64% ETA 0:00:07
size= 279kB time=00:00:07.12 bitrate= 320.8kbits/s speed=0.907x
size= 291kB time=00:00:07.48 bitrate= 318.6kbits/s speed=0.891x
468KiB 0:00:15 [31.4KiB/s] [======================> ] 68% ETA 0:00:06
size= 301kB time=00:00:07.70 bitrate= 319.7kbits/s speed=0.861x
500KiB 0:00:16 [31.4KiB/s] [=======================> ] 73% ETA 0:00:05
size= 313kB time=00:00:08.06 bitrate= 318.1kbits/s speed=0.842x
size= 320kB time=00:00:08.28 bitrate= 316.9kbits/s speed=0.818x
531KiB 0:00:17 [28.8KiB/s] [=========================> ] 78% ETA 0:00:04
size= 333kB time=00:00:08.56 bitrate= 318.1kbits/s speed=0.804x
size= 343kB time=00:00:08.85 bitrate= 317.0kbits/s speed=0.79x
562KiB 0:00:18 [31.4KiB/s] [==========================> ] 82% ETA 0:00:03
size= 353kB time=00:00:09.14 bitrate= 316.4kbits/s speed=0.778x
size= 365kB time=00:00:09.43 bitrate= 317.2kbits/s speed=0.762x
593KiB 0:00:19 [31.4KiB/s] [============================> ] 87% ETA 0:00:02
size= 375kB time=00:00:09.72 bitrate= 316.1kbits/s speed=0.752x
size= 383kB time=00:00:09.93 bitrate= 316.0kbits/s speed=0.738x
625KiB 0:00:20 [31.4KiB/s] [=============================> ] 91% ETA 0:00:01
size= 398kB time=00:00:10.29 bitrate= 316.3kbits/s speed=0.735x
656KiB 0:00:21 [31.4KiB/s] [===============================> ] 96% ETA 0:00:00
size= 405kB time=00:00:10.51 bitrate= 315.5kbits/s speed=0.722x
size= 415kB time=00:00:10.80 bitrate= 315.0kbits/s speed=0.716x
680KiB 0:00:21 [31.2KiB/s] [================================>] 100%
[out_0_0 @ 0x43be840] EOF on sink link out_0_0:default.
No more output streams to write to, finishing.
size= 419kB time=00:00:10.88 bitrate= 315.1kbits/s speed=0.708x
video:0kB audio:410kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.971850%
Input file #0 (pipe:):
Input stream #0:0 (audio): 171 packets read (696492 bytes); 171 frames decoded (174123 samples);
Total: 171 packets (696492 bytes) demuxed
Output file #0 (countToTwelve.flac):
Output stream #0:0 (audio): 152 frames encoded (174123 samples); 153 packets muxed (420316 bytes);
Total: 153 packets (420316 bytes) muxed
171 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x43d9f60] Statistics: 2 seeks, 154 writeouts
[AVIOContext @ 0x43a6080] Statistics: 696536 bytes read, 0 seeks
You can see that the probe finishes only after 187KB of audio is submitted (6 seconds at real-time)
187KiB 0:00:06 [31.4KiB/s] [========> ] 27% ETA 0:00:15 [wav @ 0x439d6e0] All info found
Only after the probe is finished do we see anything transcoded on STDOUT, which is too long for interactive applications.
Thanks.
Attachments (2)
Change History (11)
comment:1 by , 7 years ago
| Component: | undetermined → avformat |
|---|---|
| Keywords: | wav added |
| Version: | 3.3.6 → unspecified |
comment:2 by , 7 years ago
Hi,
I confirm the same behavior in the current git head (see the headers of the logs below).
Using mp3 codec in .wav container still seems to give a large delay before probe finishes, but less of one than for pcm_s16le. mulaw codec in .wav container gives the same delay when measured in bytes (and twice as long when measured in audio duration).
$ file mp3InWav.wav mulawInWav.wav
mp3InWav.wav: RIFF (little-endian) data, WAVE audio, MPEG Layer 3, stereo 16000 Hz
mulawInWav.wav: RIFF (little-endian) data, WAVE audio, ITU G.711 mu-law, stereo 16000 Hz
(pv -f -c -L 3200 mp3InWav.wav | ~/ffmpeg_sources/ffmpeg/ffmpeg -v 9 -loglevel 99 -i - -analyzeduration 200 -probesize 200 countToTwelve.flac) |& tr '\r' '\n'
ffmpeg version N-89955-g118e1b0 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.6) 20160609
configuration: --prefix=/home/akantor/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/akantor/ffmpeg_build/include --extra-ldflags=-L/home/akantor/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/akantor/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-nonfree
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 7.100 / 58. 7.100
libavdevice 58. 0.101 / 58. 0.101
libavfilter 7. 11.101 / 7. 11.101
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
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 '-'.
Reading option '-analyzeduration' ... matched as AVOption 'analyzeduration' with argument '200'.
Reading option '-probesize' ... matched as AVOption 'probesize' with argument '200'.
Reading option 'countToTwelve.flac' ... 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 -.
Successfully parsed a group of options.
Opening an input file: -.
[NULL @ 0x253cb00] Opening 'pipe:' for reading
[pipe @ 0x253d400] Setting default whitelist 'crypto'
Probing mp3 score:25 size:2048
Probing wav score:99 size:2048
[wav @ 0x253cb00] Format wav probed with size=2048 and score=99
[wav @ 0x253cb00] Before avformat_find_stream_info() pos: 104 bytes read:2240 seeks:0 nb_streams:1
3.12KiB 0:00:01 [2.88KiB/s] [> ] 4% ETA 0:00:19
6.25KiB 0:00:02 [3.14KiB/s] [==> ] 9% ETA 0:00:18
9.38KiB 0:00:03 [3.14KiB/s] [===> ] 14% ETA 0:00:17
[wav @ 0x253cb00] All info found
[wav @ 0x253cb00] stream 0: start_time: -576460752303423.500 duration: 10.952
[wav @ 0x253cb00] format: start_time: -9223372036854.775 duration: 10.952 bitrate=0 kb/s
[wav @ 0x253cb00] After avformat_find_stream_info() pos: 12200 bytes read:12480 seeks:0 frames:50
Input #0, wav, from 'pipe:':
Metadata:
encoder : Lavf58.7.100
Duration: 00:00:10.95, bitrate: N/A
Stream #0:0, 50, 1/16000: Audio: mp3 (U[0][0][0] / 0x0055), 16000 Hz, stereo, s16p, 48 kb/s
Successfully opened the file.
Parsing a group of options: output url countToTwelve.flac.
Successfully parsed a group of options.
Opening an output file: countToTwelve.flac.
[file @ 0x2546700] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
Stream #0:0 -> #0:0 (mp3 (native) -> flac (native))
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
.....
(pv -f -c -L 16000 mulawInWav.wav | ~/ffmpeg_sources/ffmpeg/ffmpeg -v 9 -loglevel 99 -i - -analyzeduration 200 -probesize 200 countToTwelve.flac) |& tr '\r' '\n'
ffmpeg version N-89955-g118e1b0 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.6) 20160609
configuration: --prefix=/home/akantor/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/akantor/ffmpeg_build/include --extra-ldflags=-L/home/akantor/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/akantor/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-nonfree
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 7.100 / 58. 7.100
libavdevice 58. 0.101 / 58. 0.101
libavfilter 7. 11.101 / 7. 11.101
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
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 '-'.
Reading option '-analyzeduration' ... matched as AVOption 'analyzeduration' with argument '200'.
Reading option '-probesize' ... matched as AVOption 'probesize' with argument '200'.
Reading option 'countToTwelve.flac' ... 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 -.
Successfully parsed a group of options.
Opening an input file: -.
[NULL @ 0x229ab00] Opening 'pipe:' for reading
[pipe @ 0x229b400] Setting default whitelist 'crypto'
Probing mp3 score:1 size:2048
Probing wav score:99 size:2048
[wav @ 0x229ab00] Format wav probed with size=2048 and score=99
[wav @ 0x229ab00] Before avformat_find_stream_info() pos: 92 bytes read:3200 seeks:0 nb_streams:1
[wav @ 0x229ab00] parser not found for codec pcm_mulaw, packets or times may be invalid.
15.6KiB 0:00:01 [14.4KiB/s] [> ] 4% ETA 0:00:20
31.2KiB 0:00:02 [15.7KiB/s] [==> ] 9% ETA 0:00:19
46.9KiB 0:00:03 [15.7KiB/s] [===> ] 13% ETA 0:00:18
62.5KiB 0:00:04 [15.7KiB/s] [=====> ] 18% ETA 0:00:17
78.1KiB 0:00:05 [15.7KiB/s] [======> ] 22% ETA 0:00:16
93.8KiB 0:00:06 [15.7KiB/s] [========> ] 27% ETA 0:00:15
109KiB 0:00:07 [15.7KiB/s] [=========> ] 31% ETA 0:00:14
125KiB 0:00:08 [15.7KiB/s] [===========> ] 36% ETA 0:00:13
140KiB 0:00:09 [15.7KiB/s] [============> ] 40% ETA 0:00:12
156KiB 0:00:10 [15.7KiB/s] [==============> ] 45% ETA 0:00:11
171KiB 0:00:11 [15.7KiB/s] [================> ] 50% ETA 0:00:10
Last message repeated 1 times
[wav @ 0x229ab00] max_analyze_duration 5000000 reached at 5120000 microseconds st:0
[wav @ 0x229ab00] stream 0: start_time: -576460752303423.500 duration: 10.980
[wav @ 0x229ab00] format: start_time: -9223372036854.775 duration: 10.980 bitrate=0 kb/s
[wav @ 0x229ab00] After avformat_find_stream_info() pos: 176220 bytes read:177600 seeks:0 frames:42
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'pipe:':
Metadata:
encoder : Lavf58.7.100
Duration: 00:00:10.98, bitrate: N/A
Stream #0:0, 42, 1/16000: Audio: pcm_mulaw ([7][0][0][0] / 0x0007), 16000 Hz, stereo, s16, 256 kb/s
Successfully opened the file.
Parsing a group of options: output url countToTwelve.flac.
Successfully parsed a group of options.
Opening an output file: countToTwelve.flac.
[file @ 0x22d8e80] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
Stream #0:0 -> #0:0 (pcm_mulaw (native) -> flac (native))
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
The same behavior is there even with --disable-demuxer=spdif .
(pv -f -c -L 32000 countToTwelve.wav | ./ffmpeg -v 9 -loglevel 99 -i - -analyzeduration 200 -probesize 200 countToTwelve.flac) |& tr '\r' '\n'
ffmpeg version N-89955-g118e1b0 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.6) 20160609
configuration: --prefix=/home/akantor/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/akantor/ffmpeg_build/include --extra-ldflags=-L/home/akantor/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/akantor/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --disable-demuxer=spdif --enable-nonfree
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 7.100 / 58. 7.100
libavdevice 58. 0.101 / 58. 0.101
libavfilter 7. 11.101 / 7. 11.101
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
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 '-'.
Reading option '-analyzeduration' ... matched as AVOption 'analyzeduration' with argument '200'.
Reading option '-probesize' ... matched as AVOption 'probesize' with argument '200'.
Reading option 'countToTwelve.flac' ... 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 -.
Successfully parsed a group of options.
Opening an input file: -.
[NULL @ 0x31d5b00] Opening 'pipe:' for reading
[pipe @ 0x31d6400] Setting default whitelist 'crypto'
Probing wav score:99 size:2048
[wav @ 0x31d5b00] Format wav probed with size=2048 and score=99
[wav @ 0x31d5b00] Before avformat_find_stream_info() pos: 44 bytes read:3200 seeks:0 nb_streams:1
[wav @ 0x31d5b00] probing stream 0 pp:32
[wav @ 0x31d5b00] probing stream 0 pp:31
Probing mp3 score:1 size:8192
[wav @ 0x31d5b00] Probe with size=8192, packets=2470 detected mp3 with score=1
[wav @ 0x31d5b00] probing stream 0 pp:30
[wav @ 0x31d5b00] probing stream 0 pp:29
Probing mp3 score:1 size:16384
[wav @ 0x31d5b00] Probe with size=16384, packets=2472 detected mp3 with score=1
[wav @ 0x31d5b00] probing stream 0 pp:28
[wav @ 0x31d5b00] probing stream 0 pp:27
[wav @ 0x31d5b00] probing stream 0 pp:26
31.2KiB 0:00:01 [28.8KiB/s] [> ] 4% ETA 0:00:20
[wav @ 0x31d5b00] probing stream 0 pp:25
[wav @ 0x31d5b00] probing stream 0 pp:24
[wav @ 0x31d5b00] probing stream 0 pp:23
[wav @ 0x31d5b00] probing stream 0 pp:22
[wav @ 0x31d5b00] probing stream 0 pp:21
[wav @ 0x31d5b00] probing stream 0 pp:20
[wav @ 0x31d5b00] probing stream 0 pp:19
[wav @ 0x31d5b00] probing stream 0 pp:18
62.5KiB 0:00:02 [31.4KiB/s] [==> ] 9% ETA 0:00:19
[wav @ 0x31d5b00] probing stream 0 pp:17
[wav @ 0x31d5b00] probing stream 0 pp:16
[wav @ 0x31d5b00] probing stream 0 pp:15
[wav @ 0x31d5b00] probing stream 0 pp:14
[wav @ 0x31d5b00] probing stream 0 pp:13
[wav @ 0x31d5b00] probing stream 0 pp:12
[wav @ 0x31d5b00] probing stream 0 pp:11
[wav @ 0x31d5b00] probing stream 0 pp:10
93.8KiB 0:00:03 [31.4KiB/s] [===> ] 13% ETA 0:00:18
[wav @ 0x31d5b00] probing stream 0 pp:9
[wav @ 0x31d5b00] probing stream 0 pp:8
[wav @ 0x31d5b00] probing stream 0 pp:7
[wav @ 0x31d5b00] probing stream 0 pp:6
[wav @ 0x31d5b00] probing stream 0 pp:5
[wav @ 0x31d5b00] probing stream 0 pp:4
[wav @ 0x31d5b00] probing stream 0 pp:3
[wav @ 0x31d5b00] probing stream 0 pp:2
125KiB 0:00:04 [31.4KiB/s] [=====> ] 18% ETA 0:00:17
[wav @ 0x31d5b00] probing stream 0 pp:1
[wav @ 0x31d5b00] probed stream 0
[wav @ 0x31d5b00] parser not found for codec pcm_s16le, packets or times may be invalid.
156KiB 0:00:05 [31.4KiB/s] [======> ] 22% ETA 0:00:16
187KiB 0:00:06 [31.4KiB/s] [========> ] 27% ETA 0:00:15
[wav @ 0x31d5b00] All info found
[wav @ 0x31d5b00] stream 0: start_time: -576460752303423.500 duration: -576460752303423.500
[wav @ 0x31d5b00] format: start_time: -9223372036854.775 duration: -9223372036854.775 bitrate=512 kb/s
[wav @ 0x31d5b00] After avformat_find_stream_info() pos: 204844 bytes read:208000 seeks:0 frames:50
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'pipe:':
Duration: N/A, bitrate: 512 kb/s
Stream #0:0, 50, 1/16000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, stereo, s16, 512 kb/s
Successfully opened the file.
Parsing a group of options: output url countToTwelve.flac.
Successfully parsed a group of options.
Opening an output file: countToTwelve.flac.
[file @ 0x321ba40] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> flac (native))
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
comment:3 by , 7 years ago
| Version: | unspecified → git-master |
|---|
comment:4 by , 7 years ago
Hi, any thoughts on this? Isn't it kind of strange that .wav is the only container that needs to look far into the stream before the probe finishes...
comment:5 by , 7 years ago
A couple of things:
- In the examples above, I was giving the wrong way to reproduce. Instead of
(pv -f -c -L 32000 countToTwelve.wav | ./ffmpeg -v 9 -loglevel 99 -i - -analyzeduration 200 -probesize 200 countToTwelve.flac) |& tr '\r' '\n'
it should have been
(pv -f -c -L 32000 countToTwelve.wav | ./ffmpeg -v 9 -loglevel 99 -analyzeduration 200 -probesize 200 -i - countToTwelve.flac) |& tr '\r' '\n'
- Somehow the problem is fixed in 3.4.2 (was still broken in 3.3.2).
So, please close this ticket.
comment:6 by , 7 years ago
I get identical behaviour with different versions of FFmpeg, please provide your input file.
by , 7 years ago
| Attachment: | countToTwelve.wav added |
|---|
by , 7 years ago
| Attachment: | sample.wav added |
|---|
follow-up: 8 comment:7 by , 7 years ago
You are right - it comes down to a difference in the .wav files themselves.
$ file countToTwelve.wav countToTwelve.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 16000 Hz $ file sample.wav sample.wav: RIFF (little-endian) data, WAVE audio, stereo 16000 Hz
countToTwelve.wav is slow, sample.wav is fast. So the problem isn't yet solved.
It seems the difference is that sample has 32bit floats, and countToTwelve has 16bit shorts (which is way more common).
comment:8 by , 7 years ago
comment:9 by , 7 years ago
Ah, now I see what you meant. Yes, you did write that :)
Right, the problem doesn't seem to happen if the audio is not 16bit shorts. Does this give some hint of where to look?
Note:
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Please test current FFmpeg git head to make this a valid ticket.
Can you confirm that the issue is only reproducible if the content of the wav file is pcm_s16le?
Is the issue also reproducible if you configure with
--disable-demuxer=spdif?