Opened 9 years ago
Closed 8 years ago
#5426 closed defect (fixed)
wmavoice: problem with 2 modes
Reported by: | ami_stuff | Owned by: | |
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Priority: | normal | Component: | avcodec |
Version: | git-master | Keywords: | wmavoice |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | yes | |
Analyzed by developer: | no |
Description
attached files doesn't decode corectly (but plays fine with ffplay when I seek in the file)
C:\>ffmpegx -i C:\wmavoice_12kbps_16khz_mono.wma out.wav ffmpeg version N-79295-g5501f58 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.5.0 (GCC) 20100414 (Fedora MinGW 4.5.0-1.fc14) configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build --arch= x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686-pc-min gw32-gcc' --enable-pthreads --enable-memalign-hack --enable-runtime-cpudetect -- enable-cross-compile --enable-static --disable-shared --extra-libs='-lws2_32 -lw inmm -lpthread' --extra-cflags='--static -I/var/www/users/research/ffmpeg/snapsh ots/build/include' --extra-ldflags='-static -L/var/www/users/research/ffmpeg/sna pshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-version3 -- enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora --enable-li bvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb --enable-li bopencore-amrwb --enable-libmp3lame --enable-libfreetype --enable-libvpx --disab le-decoder=libvpx libavutil 55. 20.100 / 55. 20.100 libavcodec 57. 34.100 / 57. 34.100 libavformat 57. 32.100 / 57. 32.100 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 41.100 / 6. 41.100 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 Input #0, asf, from 'C:\wmavoice_12kbps_16khz_mono.wma': Metadata: WMFSDKNeeded : 0.0.0.0000 DeviceConformanceTemplate: S1 WMFSDKVersion : 11.0.5721.5275 IsVBR : 0 Duration: 00:04:41.91, start: 0.000000, bitrate: 13 kb/s Stream #0:0(pol): Audio: wmavoice ([10][0][0][0] / 0x000A), 16000 Hz, mono, flt, 12 kb/s [wav @ 0x2c403e0] Using AVStream.codec to pass codec parameters to muxers is dep recated, use AVStream.codecpar instead. Output #0, wav, to 'out.wav': Metadata: WMFSDKNeeded : 0.0.0.0000 DeviceConformanceTemplate: S1 WMFSDKVersion : 11.0.5721.5275 IsVBR : 0 ISFT : Lavf57.32.100 Stream #0:0(pol): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s Metadata: encoder : Lavc57.34.100 pcm_s16le Stream mapping: Stream #0:0 -> #0:0 (wmavoice (native) -> pcm_s16le (native)) Press [q] to stop, [?] for help [wav @ 0x2c403e0] Non-monotonous DTS in output stream 0:0; previous: 1180816, cu rrent: 1180688; changing to 1180816. This may result in incorrect timestamps in the output file. Error while decoding stream #0:0: Function not implementeded= 123x size= 8810kB time=00:04:41.91 bitrate= 256.0kbits/s speed= 123x video:0kB audio:8810kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000865%
Attachments (14)
Change History (24)
by , 9 years ago
Attachment: | wmavoice_12kbps_16khz_mono.wma added |
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by , 9 years ago
Attachment: | wmavoice_16kbps_16khz_mono.wma added |
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comment:1 by , 9 years ago
Component: | undetermined → avcodec |
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Keywords: | wmavoice added |
Reproduced by developer: | set |
Status: | new → open |
Version: | unspecified → git-master |
by , 9 years ago
Attachment: | 16khz_16kbps_50.wav added |
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by , 9 years ago
Attachment: | 16khz_16kbps_50.wma added |
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by , 9 years ago
Attachment: | 16khz_16kbps_100.wav added |
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by , 9 years ago
Attachment: | 16khz_16kbps_100.wma added |
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by , 9 years ago
Attachment: | 2_8khz_4bps.wma added |
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by , 9 years ago
Attachment: | 2_8khz_5kbps.wma added |
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by , 9 years ago
Attachment: | 2_8khz_8kbps.wma added |
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by , 9 years ago
Attachment: | 2_11khz_10kbps.wma added |
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by , 9 years ago
Attachment: | 2_16khz_12kbps.wma added |
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by , 9 years ago
Attachment: | 2_16khz_16kbps.wma added |
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by , 9 years ago
Attachment: | 2_20khz_20kbps.wma added |
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comment:3 by , 9 years ago
added one more set of files
it looks like "Function not implemented" happens with other modes as well
C:\>ffmpeg -i 2_8khz_4bps.wma out.wav ffmpeg version N-79440-g0efafc5 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.3.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca -- enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib modplug --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enabl e-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable -libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --ena ble-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx 264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable -lzma --enable-decklink --enable-zlib libavutil 55. 20.100 / 55. 20.100 libavcodec 57. 34.100 / 57. 34.100 libavformat 57. 34.100 / 57. 34.100 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 41.101 / 6. 41.101 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 Input #0, asf, from '2_8khz_4bps.wma': Metadata: WMFSDKNeeded : 0.0.0.0000 DeviceConformanceTemplate: S1 WMFSDKVersion : 12.0.7601.17514 IsVBR : 0 Duration: 00:08:09.62, start: 0.000000, bitrate: 4 kb/s Stream #0:0(pol): Audio: wmavoice ([10][0][0][0] / 0x000A), 8000 Hz, mono, f lt, 4 kb/s [wav @ 00000000004c9780] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. Output #0, wav, to 'out.wav': Metadata: WMFSDKNeeded : 0.0.0.0000 DeviceConformanceTemplate: S1 WMFSDKVersion : 12.0.7601.17514 IsVBR : 0 ISFT : Lavf57.34.100 Stream #0:0(pol): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s 16, 128 kb/s Metadata: encoder : Lavc57.34.100 pcm_s16le Stream mapping: Stream #0:0 -> #0:0 (wmavoice (native) -> pcm_s16le (native)) Press [q] to stop, [?] for help Error while decoding stream #0:0: Function not implemented Last message repeated 8 times [wmavoice @ 00000000004ca860] Superframe encodes >480 samples (2049), not allowe d Error while decoding stream #0:0: Invalid data found when processing input Error while decoding stream #0:0: Function not implemented Last message repeated 1 times Error while decoding stream #0:0: Function not implementeded= 863x Last message repeated 12 times size= 7551kB time=00:08:09.61 bitrate= 126.3kbits/s speed= 854x video:0kB audio:7551kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001009%
by , 8 years ago
Attachment: | wmavoice.7z added |
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comment:4 by , 8 years ago
this decoder has problem with some audio tones
4kbps 8khz and 5kbps 8khz modes decodes ok (see attached files)
comment:6 by , 8 years ago
The issue is in the postfilter. If I disable that:
diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c
index 90dfe20..58d8d15 100644
--- a/libavcodec/wmavoice.c
+++ b/libavcodec/wmavoice.c
@@ -391,6 +391,7 @@ static av_cold int wmavoice_decode_init(AVCodecContext *ctx)
flags = AV_RL32(ctx->extradata + 18);
s->spillover_bitsize = 3 + av_ceil_log2(ctx->block_align);
s->do_apf = flags & 0x1;
+ s->do_apf = 0;
if (s->do_apf) {
ff_rdft_init(&s->rdft, 7, DFT_R2C);
ff_rdft_init(&s->irdft, 7, IDFT_C2R);
the sample decodes audibly OK. It's possible that the post-filter doesn't handle clipped or overflowing samples correctly, which would go along with the fact that halving the volume fixes it...
comment:7 by , 8 years ago
Some more digging: inside the postfilter, the issue is caused by adaptive gain control. This patch also works around the issue:
@@ -824,8 +825,12 @@ static void postfilter(WMAVoiceContext *s, const float *synth,
wiener_denoise(s, fcb_type, synth_pf, size, lpcs);
+#if 1
+ memcpy(samples, synth_pf, size * sizeof(*synth));
+#else
adaptive_gain_control(samples, synth_pf, synth, size, 0.99,
&s->postfilter_agc);
+#endif
if (s->dc_level > 8) {
/* remove ultra-low frequency DC noise / highpass filter;
follow-up: 9 comment:8 by , 8 years ago
http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2016-December/204698.html
Fixes the problem in the first sample. I didn't test the rest but I'm assuming it may be similar. Can you guys re-test and open new tickets for files that still have issues?
comment:9 by , 8 years ago
Replying to rbultje:
http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2016-December/204698.html
Fixes the problem in the first sample. I didn't test the rest but I'm assuming it may be similar. Can you guys re-test and open new tickets for files that still have issues?
Thanks, first sample is fixed, but files from "wmavoice.7z" still decodes incorrectly, so I created #6035 for them as you requested.
comment:10 by , 8 years ago
Resolution: | → fixed |
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Status: | open → closed |
Fixed in 33d7f822f8ed2d1870babc1d04d4d48cf8b6f240.
16khz_16kbps_50.wma (encoded from 16khz_16kbps_50.wav) decodes correctly
16khz_16kbps_100.wma (encoded from 16khz_16bps_100.wav) decodec incorrectly
ffmpeg -i 16khz_16kbps_100.wav -vf volume=0.5 16_khz_16kbps_50.wav