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Extend buffer source syntax.

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Make the buffer source accept a string for specifying the input pixel
format.

Originally committed as revision 24387 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2010-07-21 17:14:19 +00:00
parent e2f48c05e9
commit 59775b3c1a
1 changed files with 10 additions and 1 deletions
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11
libavfilter/vsrc_buffer.c
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@ -63,12 +63,21 @@ int av_vsrc_buffer_add_frame(AVFilterContext *buffer_filter, AVFrame *frame,
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
BufferSourceContext *c = ctx->priv;
char pix_fmt_str[128];
int n = 0;
if (!args || (n = sscanf(args, "%d:%d:%d", &c->w, &c->h, &c->pix_fmt)) != 3) {
if (!args || (n = sscanf(args, "%d:%d:%127s", &c->w, &c->h, pix_fmt_str)) != 3) {
av_log(ctx, AV_LOG_ERROR, "Expected 3 arguments, but only %d found in '%s'\n", n, args ? args : "");
return AVERROR(EINVAL);
}
if ((c->pix_fmt = av_get_pix_fmt(pix_fmt_str)) == PIX_FMT_NONE) {
char *tail;
c->pix_fmt = strtol(pix_fmt_str, &tail, 10);
if (*tail || c->pix_fmt < 0 || c->pix_fmt >= PIX_FMT_NB) {
av_log(ctx, AV_LOG_ERROR, "Invalid pixel format string '%s'\n", pix_fmt_str);
return AVERROR(EINVAL);
}
}
av_log(ctx, AV_LOG_INFO, "w:%d h:%d pixfmt:%s\n", c->w, c->h, av_pix_fmt_descriptors[c->pix_fmt].name);
return 0;