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vsrc_buffer: error on changing frame parameters.

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This commit is contained in:
Anton Khirnov 2012-01-03 11:18:00 +01:00
parent 7b9373db89
commit 5d25140f71
1 changed files with 10 additions and 0 deletions
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10
libavfilter/vsrc_buffer.c
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@ -36,6 +36,12 @@ typedef struct {
AVRational pixel_aspect;
} BufferSourceContext;
#define CHECK_PARAM_CHANGE(s, c, width, height, format)\
if (c->w != width || c->h != height || c->pix_fmt != format) {\
av_log(s, AV_LOG_ERROR, "Changing frame properties on the fly is not supported.\n");\
return AVERROR(EINVAL);\
}
int av_vsrc_buffer_add_frame(AVFilterContext *buffer_filter, AVFrame *frame,
int64_t pts, AVRational pixel_aspect)
{
@ -49,6 +55,8 @@ int av_vsrc_buffer_add_frame(AVFilterContext *buffer_filter, AVFrame *frame,
//return -1;
}
CHECK_PARAM_CHANGE(buffer_filter, c, frame->width, frame->height, frame->format);
c->buf = avfilter_get_video_buffer(buffer_filter->outputs[0], AV_PERM_WRITE,
c->w, c->h);
av_image_copy(c->buf->data, c->buf->linesize, frame->data, frame->linesize,
@ -73,6 +81,8 @@ int av_buffersrc_buffer(AVFilterContext *s, AVFilterBufferRef *buf)
return AVERROR(EINVAL);
}
CHECK_PARAM_CHANGE(s, c, buf->video->w, buf->video->h, buf->format);
c->buf = buf;
return 0;