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ffmpeg: Print a warning when -frames is affecting non video frames
Fixes Ticket2395 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -972,6 +972,7 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
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char *bsf = NULL, *next, *codec_tag = NULL;
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AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
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double qscale = -1;
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int i;
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if (!st) {
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av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
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@ -1030,6 +1031,13 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
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ost->max_frames = INT64_MAX;
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MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
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for (i = 0; i<o->nb_max_frames; i++) {
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char *p = o->max_frames[i].specifier;
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if (!*p && type != AVMEDIA_TYPE_VIDEO) {
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av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
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break;
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}
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}
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ost->copy_prior_start = -1;
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MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
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