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Do not automatically map subtitles if the decoder and encoder properties are different.

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Fixes ticket #3819.
This commit is contained in:
Carl Eugen Hoyos 2014-08-07 13:16:38 +02:00
parent 0ab00a75e4
commit 7d585bc94c
1 changed files with 21 additions and 2 deletions
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23
ffmpeg_opt.c
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@ -1870,8 +1870,27 @@ static int open_output_file(OptionsContext *o, const char *filename)
if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
for (i = 0; i < nb_input_streams; i++)
if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
new_subtitle_stream(o, oc, i);
break;
AVCodecDescriptor const *input_descriptor =
avcodec_descriptor_get(input_streams[i]->st->codec->codec_id);
AVCodecDescriptor const *output_descriptor = NULL;
AVCodec const *output_codec =
avcodec_find_encoder(oc->oformat->subtitle_codec);
int input_props = 0, output_props = 0;
if (output_codec)
output_descriptor = avcodec_descriptor_get(output_codec->id);
if (input_descriptor)
input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
if (output_descriptor)
output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
if (subtitle_codec_name ||
input_props & output_props ||
// Map dvb teletext which has neither property to any output subtitle encoder
input_descriptor && output_descriptor &&
(!input_descriptor->props ||
!output_descriptor->props)) {
new_subtitle_stream(o, oc, i);
break;
}
}
}
/* do something with data? */