Am 21.12.12 15:05, schrieb Paul B Mahol:
> On 12/21/12, Thilo Borgmann <thilo.borgmann at googlemail.com> wrote:
>> Am 21.12.12 14:21, schrieb Paul B Mahol:
>>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>>> ---
>>> libavcodec/alsdec.c | 13 ++++++++++---
>>> 1 file changed, 10 insertions(+), 3 deletions(-)
>>
>> Probably ok. Have you tested and veryfied using the reference
>> encoder/decoder?
>>
>
> Yes, without this patch ffmpeg reports CRC error.
During my test today ffmpeg still reports a CRC error after you pushed the patch:
localhost:tmp Thilo$ ./mp4alsRM23 -m6,1,2,4,5,3 in_6ch.wav out_2.mp4
localhost:tmp Thilo$ ../ffmpeg -debug 1 -i out_2.mp4 -debug 1 -f crc -
ffmpeg version N-48393-g8bc7422 Copyright (c) 2000-2013 the FFmpeg developers
built on Jan 2 2013 19:27:49 with llvm-gcc 4.2.1 (LLVM build 2336.1.00)
configuration: --disable-encoder=mpeg2video
libavutil 52. 13.100 / 52. 13.100
libavcodec 54. 85.100 / 54. 85.100
libavformat 54. 59.100 / 54. 59.100
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 30.102 / 3. 30.102
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
matched as AVOption 'debug' with argument '1'.
Reading option '-i' ... matched as input file with argument 'out_2.mp4'.
Reading option '-debug' ... matched as AVOption 'debug' with argument '1'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'crc'.
Reading option '-' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Successfully parsed a group of options.
Parsing a group of options: input file out_2.mp4.
Successfully parsed a group of options.
Opening an input file: out_2.mp4.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9cfb03d800] Format mov,mp4,m4a,3gp,3g2,mj2 probed
with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9cfb03d800] ISO: File Type Major Brand: mp42
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9cfb03d800] File position before
avformat_find_stream_info() is 8885069
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9cfb03d800] All info found
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9cfb03d800] File position after
avformat_find_stream_info() is 8884417
Guessed Channel Layout for Input Stream #0.0 : 5.1
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out_2.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isom
creation_time : 2013-01-02 20:33:39
Duration: 00:00:13.84, start: 0.000000, bitrate: 5134 kb/s
Stream #0:0(und), 1, 1/96000: Audio: mp4als (mp4a / 0x6134706D), 96000 Hz,
5.1, s32, 5133 kb/s
Metadata:
creation_time : 2013-01-02 20:33:39
Successfully openened the file.
Parsing a group of options: output file -.
Applying option f (force format) with argument crc.
Successfully parsed a group of options.
Opening an output file: -.
Successfully openened the file.
[abuffer @ 0x7f9cfac19ba0] Setting entry with key 'time_base' to value '1/96000'
[abuffer @ 0x7f9cfac19ba0] Setting entry with key 'sample_rate' to value '96000'
[abuffer @ 0x7f9cfac19ba0] Setting entry with key 'sample_fmt' to value 's32'
[abuffer @ 0x7f9cfac19ba0] Setting entry with key 'channel_layout' to value '0x3f'
[graph 0 input from stream 0:0 @ 0x7f9cfac18760] tb:1/96000 samplefmt:s32
samplerate:96000 chlayout:0x3f
[aformat @ 0x7f9cfac1a140] Setting entry with key 'sample_fmts' to value 's16'
[audio format for output stream 0:0 @ 0x7f9cfac1a060] auto-inserting filter
'auto-inserted resampler 0' between the filter 'Parsed_anull_0' and the filter
'audio format for output stream 0:0'
[auto-inserted resampler 0 @ 0x7f9cfac1a680] chl:5.1 fmt:s32 r:96000Hz ->
chl:5.1 fmt:s16 r:96000Hz
Output #0, crc, to 'pipe:':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isom
encoder : Lavf54.59.100
Stream #0:0(und), 0, 1/90000: Audio: pcm_s16le, 96000 Hz, 5.1, s16, 9216 kb/s
Metadata:
creation_time : 2013-01-02 20:33:39
Stream mapping:
Stream #0:0 -> #0:0 (als -> pcm_s16le)
Press [q] to stop, [?] for help
Multiple frames in a packet from stream 0
Last message repeated 98 times
[output stream 0:0 @ 0x7f9cfac19e60] 100 buffers queued in output stream 0:0,
something may be wrong.
Multiple frames in a packet from stream 0
Last message repeated 224 times
[als @ 0x7f9cfb040400] CRC error!
[output stream 0:0 @ 0x7f9cfac19e60] EOF on sink link output stream 0:0:default.
No more output streams to write to, finishing.
CRC=0x36aa7466
size= 0kB time=00:00:13.84 bitrate= 0.0kbits/s
video:0kB audio:15575kB subtitle:0 global headers:0kB muxing overhead -99.999906%
Statistics: 8917805 bytes read, 2 seeks
Do I miss something?
-Thilo