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fixed crash with missing media

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This commit is contained in:
itsmattkc
2018-07-19 20:44:52 +01:00
parent 7e9e4ece87
commit a14c24ad27
3 changed files with 26 additions and 12 deletions
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io/previewgenerator.cpp
+12 -5
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@@ -28,21 +28,28 @@ void PreviewGenerator::parse_media() {
if (avcodec_find_decoder(fmt_ctx->streams[i]->codecpar->codec_id) == NULL) {
qDebug() << "[ERROR] Unsupported codec in stream %d.\n";
} else {
MediaStream* ms = new MediaStream();
ms->preview_done = false;
ms->file_index = i;
MediaStream* ms = media->get_stream_from_file_index(i);
bool append = false;
if (ms == NULL) {
ms = new MediaStream();
ms->preview_done = false;
ms->file_index = i;
append = true;
}
if (fmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
bool infinite_length = (fmt_ctx->streams[i]->avg_frame_rate.den == 0);
ms->video_width = fmt_ctx->streams[i]->codecpar->width;
ms->video_height = fmt_ctx->streams[i]->codecpar->height;
ms->video_frame_rate = (infinite_length) ? 0 : av_q2d(fmt_ctx->streams[i]->avg_frame_rate);
ms->infinite_length = infinite_length;
media->video_tracks.append(ms);
if (append) media->video_tracks.append(ms);
} else if (fmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
ms->audio_channels = fmt_ctx->streams[i]->codecpar->channels;
ms->audio_layout = fmt_ctx->streams[i]->codecpar->channel_layout;
ms->audio_frequency = fmt_ctx->streams[i]->codecpar->sample_rate;
media->audio_tracks.append(ms);
if (append) media->audio_tracks.append(ms);
} else {
delete ms;
}
}
}