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lavfi: check all ff_start_frame/draw_slice/end_frame calls for errors

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This commit is contained in:
Anton Khirnov 2012-07-15 09:47:01 +02:00
parent d4f89906e3
commit 3825b52688
9 changed files with 82 additions and 36 deletions
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8
libavfilter/buffersrc.c
View File

@ -323,9 +323,10 @@ static int request_frame(AVFilterLink *link)
switch (link->type) {
case AVMEDIA_TYPE_VIDEO:
ff_start_frame(link, avfilter_ref_buffer(buf, ~0));
ff_draw_slice(link, 0, link->h, 1);
ff_end_frame(link);
if ((ret = ff_start_frame(link, avfilter_ref_buffer(buf, ~0))) < 0 ||
(ret = ff_draw_slice(link, 0, link->h, 1)) < 0 ||
(ret = ff_end_frame(link)) < 0)
goto fail;
break;
case AVMEDIA_TYPE_AUDIO:
ret = ff_filter_samples(link, avfilter_ref_buffer(buf, ~0));
@ -334,6 +335,7 @@ static int request_frame(AVFilterLink *link)
return AVERROR(EINVAL);
}
fail:
avfilter_unref_buffer(buf);
return ret;

8
libavfilter/fifo.c
View File

@ -241,9 +241,11 @@ static int request_frame(AVFilterLink *outlink)
* so we don't have to worry about dereferencing it ourselves. */
switch (outlink->type) {
case AVMEDIA_TYPE_VIDEO:
ff_start_frame(outlink, fifo->root.next->buf);
ff_draw_slice (outlink, 0, outlink->h, 1);
ff_end_frame (outlink);
if ((ret = ff_start_frame(outlink, fifo->root.next->buf)) < 0 ||
(ret = ff_draw_slice(outlink, 0, outlink->h, 1)) < 0 ||
(ret = ff_end_frame(outlink)) < 0)
return ret;
queue_pop(fifo);
break;
case AVMEDIA_TYPE_AUDIO:

18
libavfilter/vf_fps.c
View File

@ -143,9 +143,11 @@ static int request_frame(AVFilterLink *outlink)
buf->pts = av_rescale_q(s->first_pts, ctx->inputs[0]->time_base,
outlink->time_base) + s->frames_out;
ff_start_frame(outlink, buf);
ff_draw_slice(outlink, 0, outlink->h, 1);
ff_end_frame(outlink);
if ((ret = ff_start_frame(outlink, buf)) < 0 ||
(ret = ff_draw_slice(outlink, 0, outlink->h, 1)) < 0 ||
(ret = ff_end_frame(outlink)) < 0)
return ret;
s->frames_out++;
}
return 0;
@ -231,9 +233,13 @@ static int end_frame(AVFilterLink *inlink)
buf_out->pts = av_rescale_q(s->first_pts, inlink->time_base,
outlink->time_base) + s->frames_out;
ff_start_frame(outlink, buf_out);
ff_draw_slice(outlink, 0, outlink->h, 1);
ff_end_frame(outlink);
if ((ret = ff_start_frame(outlink, buf_out)) < 0 ||
(ret = ff_draw_slice(outlink, 0, outlink->h, 1)) < 0 ||
(ret = ff_end_frame(outlink)) < 0) {
avfilter_unref_bufferp(&buf);
return ret;
}
s->frames_out++;
}
flush_fifo(s->fifo);

18
libavfilter/vf_frei0r.c
View File

@ -438,18 +438,28 @@ static int source_request_frame(AVFilterLink *outlink)
{
Frei0rContext *frei0r = outlink->src->priv;
AVFilterBufferRef *picref = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
int ret;
picref->video->pixel_aspect = (AVRational) {1, 1};
picref->pts = frei0r->pts++;
picref->pos = -1;
ff_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
ret = ff_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
if (ret < 0)
goto fail;
frei0r->update(frei0r->instance, av_rescale_q(picref->pts, frei0r->time_base, (AVRational){1,1000}),
NULL, (uint32_t *)picref->data[0]);
ff_draw_slice(outlink, 0, outlink->h, 1);
ff_end_frame(outlink);
ret = ff_draw_slice(outlink, 0, outlink->h, 1);
if (ret < 0)
goto fail;
ret = ff_end_frame(outlink);
fail:
avfilter_unref_buffer(picref);
return 0;
return ret;
}
AVFilter avfilter_vsrc_frei0r_src = {

11
libavfilter/vf_select.c
View File

@ -279,12 +279,15 @@ static int request_frame(AVFilterLink *outlink)
if (av_fifo_size(select->pending_frames)) {
AVFilterBufferRef *picref;
int ret;
av_fifo_generic_read(select->pending_frames, &picref, sizeof(picref), NULL);
ff_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
ff_draw_slice(outlink, 0, outlink->h, 1);
ff_end_frame(outlink);
if ((ret = ff_start_frame(outlink, avfilter_ref_buffer(picref, ~0))) < 0 ||
(ret = ff_draw_slice(outlink, 0, outlink->h, 1)) < 0 ||
(ret = ff_end_frame(outlink)) < 0);
avfilter_unref_buffer(picref);
return 0;
return ret;
}
while (!select->select) {

14
libavfilter/vf_yadif.c
View File

@ -157,11 +157,11 @@ static AVFilterBufferRef *get_video_buffer(AVFilterLink *link, int perms, int w,
return picref;
}
static void return_frame(AVFilterContext *ctx, int is_second)
static int return_frame(AVFilterContext *ctx, int is_second)
{
YADIFContext *yadif = ctx->priv;
AVFilterLink *link= ctx->outputs[0];
int tff;
int tff, ret;
if (yadif->parity == -1) {
tff = yadif->cur->video->interlaced ?
@ -193,12 +193,16 @@ static void return_frame(AVFilterContext *ctx, int is_second)
} else {
yadif->out->pts = AV_NOPTS_VALUE;
}
ff_start_frame(ctx->outputs[0], yadif->out);
ret = ff_start_frame(ctx->outputs[0], yadif->out);
if (ret < 0)
return ret;
}
ff_draw_slice(ctx->outputs[0], 0, link->h, 1);
ff_end_frame(ctx->outputs[0]);
if ((ret = ff_draw_slice(ctx->outputs[0], 0, link->h, 1)) < 0 ||
(ret = ff_end_frame(ctx->outputs[0])) < 0)
return ret;
yadif->frame_pending = (yadif->mode&1) && !is_second;
return 0;
}
static int start_frame(AVFilterLink *link, AVFilterBufferRef *picref)

18
libavfilter/vsrc_color.c
View File

@ -142,19 +142,29 @@ static int color_request_frame(AVFilterLink *link)
{
ColorContext *color = link->src->priv;
AVFilterBufferRef *picref = ff_get_video_buffer(link, AV_PERM_WRITE, color->w, color->h);
int ret;
picref->video->pixel_aspect = (AVRational) {1, 1};
picref->pts = color->pts++;
picref->pos = -1;
ff_start_frame(link, avfilter_ref_buffer(picref, ~0));
ret = ff_start_frame(link, avfilter_ref_buffer(picref, ~0));
if (ret < 0)
goto fail;
ff_draw_rectangle(picref->data, picref->linesize,
color->line, color->line_step, color->hsub, color->vsub,
0, 0, color->w, color->h);
ff_draw_slice(link, 0, color->h, 1);
ff_end_frame(link);
ret = ff_draw_slice(link, 0, color->h, 1);
if (ret < 0)
goto fail;
ret = ff_end_frame(link);
fail:
avfilter_unref_buffer(picref);
return 0;
return ret;
}
AVFilter avfilter_vsrc_color = {

15
libavfilter/vsrc_movie.c
View File

@ -289,13 +289,20 @@ static int request_frame(AVFilterLink *outlink)
return ret;
outpicref = avfilter_ref_buffer(movie->picref, ~0);
ff_start_frame(outlink, outpicref);
ff_draw_slice(outlink, 0, outlink->h, 1);
ff_end_frame(outlink);
ret = ff_start_frame(outlink, outpicref);
if (ret < 0)
goto fail;
ret = ff_draw_slice(outlink, 0, outlink->h, 1);
if (ret < 0)
goto fail;
ret = ff_end_frame(outlink);
fail:
avfilter_unref_buffer(movie->picref);
movie->picref = NULL;
return 0;
return ret;
}
AVFilter avfilter_vsrc_movie = {

8
libavfilter/vsrc_testsrc.c
View File

@ -130,6 +130,7 @@ static int request_frame(AVFilterLink *outlink)
{
TestSourceContext *test = outlink->src->priv;
AVFilterBufferRef *picref;
int ret;
if (test->max_pts >= 0 && test->pts > test->max_pts)
return AVERROR_EOF;
@ -143,9 +144,10 @@ static int request_frame(AVFilterLink *outlink)
test->nb_frame++;
test->fill_picture_fn(outlink->src, picref);
ff_start_frame(outlink, picref);
ff_draw_slice(outlink, 0, test->h, 1);
ff_end_frame(outlink);
if ((ret = ff_start_frame(outlink, picref)) < 0 ||
(ret = ff_draw_slice(outlink, 0, test->h, 1)) < 0 ||
(ret = ff_end_frame(outlink)) < 0)
return ret;
return 0;
}