On Thu, Jan 5, 2023 at 9:53 PM Michael Niedermayer <mich...@niedermayer.cc> wrote:
> On Thu, Jan 05, 2023 at 01:44:10PM +0100, Paul B Mahol wrote: > > Patch attached. > > > swresample.c | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > eee7a0685b44aa867562138a2e2437ecb8844612 > 0001-libswresample-swresample-avoid-s16p-internal-transfe.patch > > From 9c4cd60e2dd41cf98d693c8251f4cfade0807073 Mon Sep 17 00:00:00 2001 > > From: Paul B Mahol <one...@gmail.com> > > Date: Thu, 5 Jan 2023 13:40:12 +0100 > > Subject: [PATCH] libswresample/swresample: avoid s16p internal transfer > format > > > > Instead use float one by default for sample rate conversions. > > The s16p internal transfer format produces visible and hearable > > quantization artifacts. > > When does this occur and why? > It occurs always. Just compare output with 16bit and int32/float/double. Look at other people report on internet. Look at src.infinitewave.ca > This change should be limited to the case that benefits, this would force > this > even without resampling in some cases. > It is forced only if sample rates between input and output differs. > > thx > > [...] > > -- > Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > > The day soldiers stop bringing you their problems is the day you have > stopped > leading them. They have either lost confidence that you can help or > concluded > you do not care. Either case is a failure of leadership. - Colin Powell > _______________________________________________ > 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". > _______________________________________________ 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".
