[FFmpeg-devel] Fwd: [PATCH] Psygnosis YOP demuxer

Jai Menon jmenon86
Wed Jan 6 11:13:33 CET 2010


On Wed, Jan 6, 2010 at 3:39 PM, Benoit Fouet <benoit.fouet at free.fr> wrote:
> On Wed, 6 Jan 2010 06:46:08 +0100 Michael Niedermayer wrote:
>> On Tue, Jan 05, 2010 at 11:03:29PM +0530, Mohamed Naufal wrote:
>> > 2010/1/5 Michael Niedermayer <michaelni at gmx.at>
>> >
>> >
>> > [...]
>> >
>> >
>> > > > +static int yop_read_packet(AVFormatContext *s, AVPacket *pkt)
>> > > > +{
>> > > > + ? ?YopDecContext *yop = s->priv_data;
>> > > > + ? ?ByteIOContext *pb ?= s->pb;
>> > > > +
>> > > > + ? ?int ret;
>> > > > + ? ?int palette_size ? ? ? ? ? = 4 + yop->num_pal_colors * 3;
>> > >
>> > > > + ? ?int actual_video_data_size = yop->frame_size -
>> > > > + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? yop->audio_block_length - palette_size;
>> > >
>> > > this still can end up negative, there still are missing checks in the
>> > > header parsing
>> > >
>> > >
>> >
>> > Fixed.
>> >
>> > [...]
>> >
>> > Naufal
>>
>> > ?Changelog ? ? ? ? ? ? ? ?| ? ?1
>> > ?doc/general.texi ? ? ? ? | ? ?1
>> > ?libavformat/Makefile ? ? | ? ?1
>> > ?libavformat/allformats.c | ? ?1
>> > ?libavformat/avformat.h ? | ? ?2
>> > ?libavformat/yop.c ? ? ? ?| ?186 +++++++++++++++++++++++++++++++++++++++++++++++
>> > ?6 files changed, 191 insertions(+), 1 deletion(-)
>> > 05b7713388599f9ce9d51388deb0b792ae89051f ?yop_demux.patch
>>
>> patch ok if it works (also seeking and no crashes with damaged files)
>>
>> [...]
>
> libavformat/yop.c: In function ?yop_read_header?:
> libavformat/yop.c:80: error: ?CODEC_ID_YOP? undeclared (first use in this function)
> libavformat/yop.c:80: error: (Each undeclared identifier is reported only once
> libavformat/yop.c:80: error: for each function it appears in.)
> libavformat/yop.c: In function ?yop_read_packet?:
> libavformat/yop.c:126: warning: ?av_destruct_packet_nofree? is deprecated (declared at ./libavcodec/avcodec.h:2794)

Now that the demuxer is approved, Naufal should go ahead and submit
the decoder. Also for game formats etc, i think its better if playback
support is added as one single commit.

--
Jai Menon



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