[FFmpeg-devel] [PATCH 2/3] lavc/libopenjpegenc: add layerrates parameter to allow different compression rates per layer

[Jean First]

On Mon Feb 02 2015 17:20:44 GMT+0100 (CET), Michael Niedermayer wrote:
> On Mon, Feb 02, 2015 at 01:18:35PM +0100, Jean First wrote:
>>  libopenjpegenc.c |   42 ++++++++++++++++++++----------------------
>>  1 file changed, 20 insertions(+), 22 deletions(-)
>> 6bed682adf441fa060b9fef84df173cd758320ed  0001-lavc-libopenjpegenc-move-opj_create_compress-opj_cio.patch
>> From fe0afff9c7b8c6f78dcad0720965c6f6a50e7813 Mon Sep 17 00:00:00 2001
>> From: Jean First <jeanfirst at gmail.com>
>> Date: Mon, 2 Feb 2015 12:57:03 +0100
>> Subject: [PATCH] lavc/libopenjpegenc: move opj_create_compress, opj_cio_open
>>  and opj_set_event_mgr to libopenjpeg_encode_frame
>>
>>  libopenjpegenc crashes with "pointer being freed was not allocated" when threading
>>  is enabled with:
>>  ffmpeg -i tests/vsynth1/01.pgm -vcodec libopenjpeg file.j2k
> cannot reproduce
> do i assume correctly that this is a bug in libopenjpeg and unlreated
> to this patch ?
>

Yes, that's my guess. Any other implementation I saw using libopenjpeg
did initialise and encode the date in the same thread.
Jean