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Use the new null callbacks to simplify filters and reduce duplicated code.

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Originally committed as revision 22595 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Bobby Bingham 2010-03-18 23:13:02 +00:00
parent 91d1c741bf
commit d313e17ab1
5 changed files with 18 additions and 84 deletions
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20
libavfilter/vf_aspect.c
View File

@ -56,13 +56,6 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
return 0;
}
static AVFilterPicRef *get_video_buffer(AVFilterLink *link, int perms,
int w, int h)
{
return avfilter_get_video_buffer(link->dst->outputs[0], perms, w, h);
}
static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
{
AspectContext *aspect = link->dst->priv;
@ -71,11 +64,6 @@ static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
avfilter_start_frame(link->dst->outputs[0], picref);
}
static void end_frame(AVFilterLink *link)
{
avfilter_end_frame(link->dst->outputs[0]);
}
#if CONFIG_ASPECT_FILTER
/* for aspect filter, convert from frame aspect ratio to pixel aspect ratio */
static int frameaspect_config_props(AVFilterLink *inlink)
@ -100,9 +88,9 @@ AVFilter avfilter_vf_aspect = {
.inputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO,
.config_props = frameaspect_config_props,
.get_video_buffer = get_video_buffer,
.get_video_buffer = avfilter_null_get_video_buffer,
.start_frame = start_frame,
.end_frame = end_frame },
.end_frame = avfilter_null_end_frame },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",
@ -122,9 +110,9 @@ AVFilter avfilter_vf_pixelaspect = {
.inputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO,
.get_video_buffer = get_video_buffer,
.get_video_buffer = avfilter_null_get_video_buffer,
.start_frame = start_frame,
.end_frame = end_frame },
.end_frame = avfilter_null_end_frame },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",

8
libavfilter/vf_crop.c
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@ -156,12 +156,6 @@ static int config_output(AVFilterLink *link)
return 0;
}
static AVFilterPicRef *get_video_buffer(AVFilterLink *link, int perms,
int w, int h)
{
return avfilter_get_video_buffer(link->dst->outputs[0], perms, w, h);
}
static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
{
CropContext *crop = link->dst->priv;
@ -223,7 +217,7 @@ AVFilter avfilter_vf_crop = {
.type = CODEC_TYPE_VIDEO,
.start_frame = start_frame,
.draw_slice = draw_slice,
.get_video_buffer = get_video_buffer,
.get_video_buffer = avfilter_null_get_video_buffer,
.config_props = config_input, },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",

37
libavfilter/vf_format.c
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@ -85,27 +85,6 @@ static AVFilterFormats *make_format_list(FormatContext *format, int flag)
return formats;
}
static AVFilterPicRef *get_video_buffer(AVFilterLink *link, int perms,
int w, int h)
{
return avfilter_get_video_buffer(link->dst->outputs[0], perms, w, h);
}
static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
{
avfilter_start_frame(link->dst->outputs[0], picref);
}
static void end_frame(AVFilterLink *link)
{
avfilter_end_frame(link->dst->outputs[0]);
}
static void draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
{
avfilter_draw_slice(link->dst->outputs[0], y, h, slice_dir);
}
#if CONFIG_FORMAT_FILTER
static int query_formats_format(AVFilterContext *ctx)
{
@ -125,10 +104,10 @@ AVFilter avfilter_vf_format = {
.inputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO,
.get_video_buffer= get_video_buffer,
.start_frame = start_frame,
.draw_slice = draw_slice,
.end_frame = end_frame, },
.get_video_buffer= avfilter_null_get_video_buffer,
.start_frame = avfilter_null_start_frame,
.draw_slice = avfilter_null_draw_slice,
.end_frame = avfilter_null_end_frame, },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO },
@ -155,10 +134,10 @@ AVFilter avfilter_vf_noformat = {
.inputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO,
.get_video_buffer= get_video_buffer,
.start_frame = start_frame,
.draw_slice = draw_slice,
.end_frame = end_frame, },
.get_video_buffer= avfilter_null_get_video_buffer,
.start_frame = avfilter_null_start_frame,
.draw_slice = avfilter_null_draw_slice,
.end_frame = avfilter_null_end_frame, },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO },

22
libavfilter/vf_null.c
View File

@ -23,22 +23,6 @@
#include "avfilter.h"
static AVFilterPicRef *get_video_buffer(AVFilterLink *link, int perms,
int w, int h)
{
return avfilter_get_video_buffer(link->dst->outputs[0], perms, w, h);
}
static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
{
avfilter_start_frame(link->dst->outputs[0], picref);
}
static void end_frame(AVFilterLink *link)
{
avfilter_end_frame(link->dst->outputs[0]);
}
AVFilter avfilter_vf_null = {
.name = "null",
.description = NULL_IF_CONFIG_SMALL("Pass the source unchanged to the output."),
@ -47,9 +31,9 @@ AVFilter avfilter_vf_null = {
.inputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO,
.get_video_buffer = get_video_buffer,
.start_frame = start_frame,
.end_frame = end_frame },
.get_video_buffer = avfilter_null_get_video_buffer,
.start_frame = avfilter_null_start_frame,
.end_frame = avfilter_null_end_frame },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",

15
libavfilter/vf_slicify.c
View File

@ -57,12 +57,6 @@ static int config_props(AVFilterLink *link)
return 0;
}
static AVFilterPicRef *get_video_buffer(AVFilterLink *link, int perms,
int w, int h)
{
return avfilter_get_video_buffer(link->dst->outputs[0], perms, w, h);
}
static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
{
SliceContext *slice = link->dst->priv;
@ -81,11 +75,6 @@ static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
avfilter_start_frame(link->dst->outputs[0], picref);
}
static void end_frame(AVFilterLink *link)
{
avfilter_end_frame(link->dst->outputs[0]);
}
static void draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
{
SliceContext *slice = link->dst->priv;
@ -116,11 +105,11 @@ AVFilter avfilter_vf_slicify = {
.inputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO,
.get_video_buffer = get_video_buffer,
.get_video_buffer = avfilter_null_get_video_buffer,
.start_frame = start_frame,
.draw_slice = draw_slice,
.config_props = config_props,
.end_frame = end_frame, },
.end_frame = avfilter_null_end_frame, },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",
.type = CODEC_TYPE_VIDEO, },