#5122: First audio packet is always corrupted when parsing PCM
-------------------------------------+-------------------------------------
Reporter: | Owner:
marcel_poelstra | Status: new
Type: defect | Component:
Priority: normal | undetermined
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by marcel_poelstra):
Replying to [comment:5 cehoyos]:
Of course the payload is the same.... that is not the issue. Please have
a look at the screenshots I sent from the analyzer. Not only the payload,
but the container should be OK as well !
> The input file and the output file contain identical audio data, just
look at the files with a hexeditor after cutting the beginning of the file
until the "data" tag.
>
> Why do you believe the output file is different?
>
> {{{
> 00000000 52 49 46 46 ac 6d 28 00 57 41 56 45 66 6d 74 20
|RIFF.m(.WAVEfmt |
> 00000010 10 00 00 00 01 00 01 00 44 ac 00 00 88 58 01 00
|........D....X..|
> 00000020 02 00 10 00 64 61 74 61 f0 5f 28 00 00 00 8c 05
|....data._(.....|
> 00000030 13 0b 8e 10 fa 15 4e 1b 87 20 a0 25 92 2a 5a 2f |......N..
.%.*Z/|
> 00000040 f2 33 57 38 81 3c 71 40 1e 44 87 47 a9 4a 7e 4d
|.3W8.<q@.D.G.J~M|
> 00000050 07 50 3f 52 23 54 b3 55 ee 56 d1 57 5b 58 8d 58
|.P?R#T.U.V.W[X.X|
> 00000060 66 58 e5 57 0c 57 db 55 55 54 7a 52 4b 50 cc 4d
|fX.W.W.UUTzRKP.M|
> 00000070 ff 4a e6 47 85 44 de 40 f7 3c d3 38 75 34 e3 2f
|.J.G.D.@.<.8u4./|
> 00000080 20 2b 31 26 1d 21 e7 1b 95 16 2c 11 b2 0b 2e 06 |
+1&.!....,.....|
> 00000090 a1 00 15 fb 8d f5 10 f0 a3 ea 4c e5 10 e0 f3 da
|..........L.....|
> 000000a0 fc d5 2f d1 91 cc 27 c8 f5 c3 ff bf 4a bc d9 b8
|../...'.....J...|
> 000000b0 af b5 d0 b2 3f b0 fd ad 10 ac 75 aa 31 a9 44 a8
|....?.....u.1.D.|
> 000000c0 b0 a7 74 a7 91 a7 08 a8 d6 a8 fd a9 7a ab 4c ad
|..t.........z.L.|
> 000000d0 71 af e7 b1 ab b4 bd b7 15 bb b4 be 94 c2 b2 c6
|q...............|
> 000000e0 0a cb 96 cf 54 d4 3e d9 4e de 80 e3 cf e8 36 ee
|....T.>.N.....6.|
> 000000f0 ad f3 32 f9 be fe 49 04 d2 09 50 0f c0 14 1a 1a
|..2...I...P.....|
> }}}
> {{{
> 00000000 52 49 46 46 36 60 28 00 57 41 56 45 66 6d 74 20
|RIFF6`(.WAVEfmt |
> 00000010 10 00 00 00 01 00 01 00 44 ac 00 00 88 58 01 00
|........D....X..|
> 00000020 02 00 10 00 4c 49 53 54 1a 00 00 00 49 4e 46 4f
|....LIST....INFO|
> 00000030 49 53 46 54 0e 00 00 00 4c 61 76 66 35 37 2e 32
|ISFT....Lavf57.2|
> 00000040 31 2e 31 30 30 00 64 61 74 61 f0 5f 28 00 00 00
|1.100.data._(...|
> 00000050 8c 05 13 0b 8e 10 fa 15 4e 1b 87 20 a0 25 92 2a |........N..
.%.*|
> 00000060 5a 2f f2 33 57 38 81 3c 71 40 1e 44 87 47 a9 4a
|Z/.3W8.<q@.D.G.J|
> 00000070 7e 4d 07 50 3f 52 23 54 b3 55 ee 56 d1 57 5b 58
|~M.P?R#T.U.V.W[X|
> 00000080 8d 58 66 58 e5 57 0c 57 db 55 55 54 7a 52 4b 50
|.XfX.W.W.UUTzRKP|
> 00000090 cc 4d ff 4a e6 47 85 44 de 40 f7 3c d3 38 75 34
|.M.J.G.D.@.<.8u4|
> 000000a0 e3 2f 20 2b 31 26 1d 21 e7 1b 95 16 2c 11 b2 0b |./
+1&.!....,...|
> 000000b0 2e 06 a1 00 15 fb 8d f5 10 f0 a3 ea 4c e5 10 e0
|............L...|
> 000000c0 f3 da fc d5 2f d1 91 cc 27 c8 f5 c3 ff bf 4a bc
|..../...'.....J.|
> 000000d0 d9 b8 af b5 d0 b2 3f b0 fd ad 10 ac 75 aa 31 a9
|......?.....u.1.|
> 000000e0 44 a8 b0 a7 74 a7 91 a7 08 a8 d6 a8 fd a9 7a ab
|D...t.........z.|
> 000000f0 4c ad 71 af e7 b1 ab b4 bd b7 15 bb b4 be 94 c2
|L.q.............|
> }}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5122#comment:8>
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