videolan/ffmpeg
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rename curr_filter to last_filter, factorize filter declaration

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Originally committed as revision 23091 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2010-05-11 17:23:06 +00:00
parent 79b90b2549
commit a9f3cb9372
1 changed files with 16 additions and 18 deletions
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34
ffmpeg.c
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@ -398,7 +398,7 @@ static AVFilter output_filter =
static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
{
AVFilterContext *curr_filter;
AVFilterContext *last_filter, *filter;
/** filter graph containing all filters including input & output */
AVCodecContext *codec = ost->st->codec;
AVCodecContext *icodec = ist->st->codec;
@ -422,41 +422,39 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
avfilter_graph_add_filter(graph, ist->input_video_filter);
avfilter_graph_add_filter(graph, ist->out_video_filter);
curr_filter = ist->input_video_filter;
last_filter = ist->input_video_filter;
if (ost->video_crop) {
AVFilterContext *filt_crop;
snprintf(args, 255, "%d:%d:%d:%d", ost->leftBand, ost->topBand,
codec->width,
codec->height);
filt_crop = avfilter_open(avfilter_get_by_name("crop"), NULL);
if (!filt_crop)
filter = avfilter_open(avfilter_get_by_name("crop"), NULL);
if (!filter)
return -1;
if (avfilter_init_filter(filt_crop, args, NULL))
if (avfilter_init_filter(filter, args, NULL))
return -1;
if (avfilter_link(curr_filter, 0, filt_crop, 0))
if (avfilter_link(last_filter, 0, filter, 0))
return -1;
curr_filter = filt_crop;
avfilter_graph_add_filter(graph, curr_filter);
last_filter = filter;
avfilter_graph_add_filter(graph, last_filter);
}
if((codec->width !=
icodec->width - (frame_leftBand + frame_rightBand)) ||
(codec->height != icodec->height - (frame_topBand + frame_bottomBand))) {
AVFilterContext *filt_scale;
snprintf(args, 255, "%d:%d:flags=0x%X",
codec->width,
codec->height,
(int)av_get_int(sws_opts, "sws_flags", NULL));
filt_scale = avfilter_open(avfilter_get_by_name("scale"), NULL);
if (!filt_scale)
filter = avfilter_open(avfilter_get_by_name("scale"), NULL);
if (!filter)
return -1;
if (avfilter_init_filter(filt_scale, args, NULL))
if (avfilter_init_filter(filter, args, NULL))
return -1;
if (avfilter_link(curr_filter, 0, filt_scale, 0))
if (avfilter_link(last_filter, 0, filter, 0))
return -1;
curr_filter = filt_scale;
avfilter_graph_add_filter(graph, curr_filter);
last_filter = filter;
avfilter_graph_add_filter(graph, last_filter);
}
if (vfilters) {
@ -464,7 +462,7 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
outputs->name = av_strdup("in");
outputs->filter = curr_filter;
outputs->filter = last_filter;
outputs->pad_idx = 0;
outputs->next = NULL;
@ -477,7 +475,7 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
return -1;
av_freep(&vfilters);
} else {
if (avfilter_link(curr_filter, 0, ist->out_video_filter, 0) < 0)
if (avfilter_link(last_filter, 0, ist->out_video_filter, 0) < 0)
return -1;
}