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ffmpeg: fallback to codecpar parameters on input filter eof 

Fixes ticket #6854 and the following simpler case:

ffmpeg -f lavfi -i testsrc=d=1 -f lavfi -i testsrc=d=0 -filter_complex overlay -f null none

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2018-03-18 18:04:13 +01:00
parent 0dc11d8bbd
commit 60c9a25530
1 changed files with 21 additions and 12 deletions
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33
fftools/ffmpeg.c
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@ -1829,6 +1829,19 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
print_final_stats(total_size);
}
static void ifilter_parameters_from_codecpar(InputFilter *ifilter, AVCodecParameters *par)
{
// We never got any input. Set a fake format, which will
// come from libavformat.
ifilter->format = par->format;
ifilter->sample_rate = par->sample_rate;
ifilter->channels = par->channels;
ifilter->channel_layout = par->channel_layout;
ifilter->width = par->width;
ifilter->height = par->height;
ifilter->sample_aspect_ratio = par->sample_aspect_ratio;
}
static void flush_encoders(void)
{
int i, ret;
@ -1855,18 +1868,8 @@ static void flush_encoders(void)
int x;
for (x = 0; x < fg->nb_inputs; x++) {
InputFilter *ifilter = fg->inputs[x];
if (ifilter->format < 0) {
AVCodecParameters *par = ifilter->ist->st->codecpar;
// We never got any input. Set a fake format, which will
// come from libavformat.
ifilter->format = par->format;
ifilter->sample_rate = par->sample_rate;
ifilter->channels = par->channels;
ifilter->channel_layout = par->channel_layout;
ifilter->width = par->width;
ifilter->height = par->height;
ifilter->sample_aspect_ratio = par->sample_aspect_ratio;
}
if (ifilter->format < 0)
ifilter_parameters_from_codecpar(ifilter, ifilter->ist->st->codecpar);
}
if (!ifilter_has_all_input_formats(fg))
@ -2196,6 +2199,12 @@ static int ifilter_send_eof(InputFilter *ifilter, int64_t pts)
} else {
// the filtergraph was never configured
FilterGraph *fg = ifilter->graph;
if (ifilter->format < 0)
ifilter_parameters_from_codecpar(ifilter, ifilter->ist->st->codecpar);
if (ifilter->format < 0 && (ifilter->type == AVMEDIA_TYPE_AUDIO || ifilter->type == AVMEDIA_TYPE_VIDEO)) {
av_log(NULL, AV_LOG_ERROR, "Cannot determine format of input stream %d:%d after EOF\n", ifilter->ist->file_index, ifilter->ist->st->index);
return AVERROR_INVALIDDATA;
}
for (i = 0; i < fg->nb_inputs; i++)
if (!fg->inputs[i]->eof)
break;