On Tue, Apr 28, 2020 at 08:20:37PM +0200, Lynne wrote: > Part of this patch is based on Paul B Mahol's patch from last year. > > This also allows for single-stream parameter/codec changes. > > Must be applied on top of the latest version of other 3 patches I sent today. >
> oggdec.c | 45 +++++++++++++++++++++++++-------------------- > oggdec.h | 1 + > oggparseopus.c | 1 + > 3 files changed, 27 insertions(+), 20 deletions(-) > ce692abc11552b4c35772e57051378e0fd1ddece > 0001-oggdec-add-support-for-proper-demuxing-of-chained-Op.patch > From 70dcc91b32c89cb580bf13f2c081fa8e74f226f9 Mon Sep 17 00:00:00 2001 > From: Lynne <d...@lynne.ee> > Date: Tue, 28 Apr 2020 12:25:46 +0100 > Subject: [PATCH] oggdec: add support for proper demuxing of chained Opus files > and streams > > Part of this patch is based on Paul B Mahol's patch from last year. > > This also allows for single-stream parameter/codec changes. > --- > libavformat/oggdec.c | 45 +++++++++++++++++++++----------------- > libavformat/oggdec.h | 1 + > libavformat/oggparseopus.c | 1 + > 3 files changed, 27 insertions(+), 20 deletions(-) This causes out of array reads with https://samples.ffmpeg.org/V-codecs/Theora/theora_testsuite_broken/multi2.ogg ==5283== Invalid read of size 8 ==5283== at 0x640508: vorbis_packet (oggparsevorbis.c:413) ==5283== by 0x637546: ogg_packet (oggdec.c:589) ==5283== by 0x638392: ogg_read_packet (oggdec.c:824) ==5283== by 0x6A9211: ff_read_packet (utils.c:851) ==5283== by 0x6AC440: read_frame_internal (utils.c:1582) ==5283== by 0x6AD3F8: av_read_frame (utils.c:1784) ==5283== by 0x250B4B: get_input_packet (ffmpeg.c:4140) ==5283== by 0x251021: process_input (ffmpeg.c:4259) ==5283== by 0x253255: transcode_step (ffmpeg.c:4640) ==5283== by 0x2533D2: transcode (ffmpeg.c:4694) ==5283== by 0x253CE9: main (ffmpeg.c:4895) ==5283== Address 0x1680af68 is 8 bytes after a block of size 32 in arena "client" ==5283== [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Those who are too smart to engage in politics are punished by being governed by those who are dumber. -- Plato
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