[FFmpeg-devel] [PATCH] image2 bugfix for image2pipe
Peter Holik
peter
Tue May 26 14:46:31 CEST 2009
> On Tue, May 26, 2009 at 01:21:46PM +0200, Peter Holik wrote:
>> Hi!
>>
>>
>> ffmpeg -i a.png b.png
>> ffmpeg -f image2 -i a.png b.png
>> ffmpeg -f image2 -vcodec png -i a.png b.png
>>
>> works but
>>
>> ffmpeg -f image2pipe -vcodec png -i a.png b.png
>>
>> won't work because only 4096 bytes are returned from img_read_packet.
>>
>> My patch now returns the whole image.
>>
>>
>> Request for comment.
> [...]
>
>> - /* loop over input */
>> - if (s1->loop_input && s->img_number > s->img_last) {
>> - s->img_number = s->img_first;
>> - }
>> - if (av_get_frame_filename(filename, sizeof(filename),
>> - s->path, s->img_number)<0 && s->img_number > 1)
>> + /* loop over input */
>> + if (s1->loop_input && s->img_number > s->img_last) {
>> + s->img_number = s->img_first;
>> + }
>> + if (av_get_frame_filename(filename, sizeof(filename),
>> + s->path, s->img_number)<0 && s->img_number > 1)
>
> cosmetics
@@ -418,7 +442,7 @@ AVInputFormat image2pipe_demuxer = {
sizeof(VideoData),
NULL, /* no probe */
img_read_header,
- img_read_packet,
+ img_read_packet_pipe,
Because i divided img_read_packet into 2 functions
img_read_packet and img_read_packet_pipe
therefore i did some cosmetics on img_read_packet ->
"if(!s->is_pipe)" check is not needed anymore.
cu Peter
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