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fftools/ffmpeg_filter: return error codes from choose_pix_fmts() instead of aborting

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This commit is contained in:
Anton Khirnov 2023-07-13 15:11:07 +02:00
parent 8815adfe75
commit 8db96808bc
1 changed files with 19 additions and 13 deletions
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32
fftools/ffmpeg_filter.c
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@ -270,20 +270,20 @@ static void sub2video_update(InputFilterPriv *ifp, int64_t heartbeat_pts,
ifp->sub2video.initialize = 0;
}
/* May return NULL (no pixel format found), a static string or a string
* backed by the bprint. Nothing has been written to the AVBPrint in case
/* *dst may return be set to NULL (no pixel format found), a static string or a
* string backed by the bprint. Nothing has been written to the AVBPrint in case
* NULL is returned. The AVBPrint provided should be clean. */
static const char *choose_pix_fmts(OutputFilter *ofilter, AVBPrint *bprint)
static int choose_pix_fmts(OutputFilter *ofilter, AVBPrint *bprint,
const char **dst)
{
OutputFilterPriv *ofp = ofp_from_ofilter(ofilter);
OutputStream *ost = ofilter->ost;
if (ost->keep_pix_fmt) {
return ofp->format == AV_PIX_FMT_NONE ? NULL :
*dst = NULL;
if (ost->keep_pix_fmt || ofp->format != AV_PIX_FMT_NONE) {
*dst = ofp->format == AV_PIX_FMT_NONE ? NULL :
av_get_pix_fmt_name(ofp->format);
}
if (ofp->format != AV_PIX_FMT_NONE) {
return av_get_pix_fmt_name(ofp->format);
} else if (ofp->formats) {
const enum AVPixelFormat *p = ofp->formats;
@ -292,10 +292,12 @@ static const char *choose_pix_fmts(OutputFilter *ofilter, AVBPrint *bprint)
av_bprintf(bprint, "%s%c", name, p[1] == AV_PIX_FMT_NONE ? '\0' : '|');
}
if (!av_bprint_is_complete(bprint))
report_and_exit(AVERROR(ENOMEM));
return bprint->str;
} else
return NULL;
return AVERROR(ENOMEM);
*dst = bprint->str;
}
return 0;
}
/* Define a function for appending a list of allowed formats
@ -1103,7 +1105,11 @@ static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter,
}
av_bprint_init(&bprint, 0, AV_BPRINT_SIZE_UNLIMITED);
if ((pix_fmts = choose_pix_fmts(ofilter, &bprint))) {
ret = choose_pix_fmts(ofilter, &bprint, &pix_fmts);
if (ret < 0)
return ret;
if (pix_fmts) {
AVFilterContext *filter;
ret = avfilter_graph_create_filter(&filter,