Carl Eugen Hoyos: > Am Sa., 20. Feb. 2021 um 17:00 Uhr schrieb Andreas Rheinhardt > <andreas.rheinha...@gmail.com>: >> >> The tests also test the other dispositions: commentary, descriptions >> as well as dub and original language. >> >> Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@gmail.com> >> --- >> The first version of the matroska-wtv-remux test used the fixed-point >> mp2 decoder; given that no floats are involved I presumed that this >> would give reproducible results among different arches. I was wrong [1]. > > How is this possible? > I just had a second look and I think I was wrong about the culprit. Here is the diff from ppc from Andriy:
-1206b022950477c92c2313a1fa11143b *tests/data/fate/matroska-wtv-remux.matroska +95d7ff43421e95554fb50c02e5b09e5e *tests/data/fate/matroska-wtv-remux.matroska 752499 tests/data/fate/matroska-wtv-remux.matroska #extradata 0: 5, 0x001c0014 #extradata 1: 22, 0x12dc010c @@ -46,7 +46,7 @@ 1, 144, 144, 24, 576, 0x422e12bd 4, 144, 144, 24, 6912, 0xfccb037f 2, 163, 163, 24, 192, 0xc948791d -3, 163, 163, 0, 19, 0x09f10390 +3, 163, 163, 0, 19, 0x2e110794 1, 168, 168, 24, 576, 0xa7581b29 4, 168, 168, 24, 6912, 0xa650ad97 2, 187, 187, 24, 192, 0xc948791d Test matroska-wtv-remux failed. Look at tests/data/fate/matroska-wtv-remux.err for details. tests/Makefile:255: recipe for target 'fate-matroska-wtv-remux' failed make: *** [fate-matroska-wtv-remux] Error 1 Stream 3 is the hearing impaired stream. It is also completely blank (consists only of zeroes after decoding); stream 4 is the ordinary audio track (also mp2) decoded to pcm_24be. There is no dif for it. So it seems to be the alac encoder, something which I had not considered previously because this is a lossless encoder. But now I looked and there are doubles in ff_lpc_calc_coeffs, but this code is only used if compression_level == 2 (the default). I will give this another try by setting it to 1. - Andreas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
