[FFmpeg-devel] [PATCH] rmdec.c: merge old/new packet reading code

Kostya kostya.shishkov
Wed Mar 11 15:10:32 CET 2009

On Wed, Mar 11, 2009 at 09:04:02AM -0400, Ronald S. Bultje wrote:
> Hi,
> On Wed, Mar 11, 2009 at 8:58 AM, Kostya <kostya.shishkov at gmail.com> wrote:
> > On Wed, Mar 11, 2009 at 08:27:10AM -0400, Ronald S. Bultje wrote:
> >> Yes, I'd like it easier also, but don't know how yet. We could add
> >> 1argument to ff_rm_parse_packet() like int *please_write_index_entry
> >> or *is_first_slice, since the know exactly when we are at the first
> >> packet of a packet and whether that is a keyframe (flags&2). Then the
> >> condition would just be 1-2 pieces, if (is_first_slice && old_flags &
> >> 2) or if (please_write_index_entry).
> >
> > Hey, it sets *flags = 2 which is the thing you need.
> It sets flags=2 for the last audio packet of a series of packets to be
> unscrambled together, so that the first data to be returned from it
> will have the keyframe flag set. However, this is not the first audio
> packet in that series at the time when we were reading data from the
> disk. I need the first packet for the seek to be useful in any way.
> :-).

That should be a leftover from the time when first packet was demuxer
right after last one was read.
> Ronald

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