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refactor: cleanup unused functions

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This commit is contained in:
Adrian Shum 2022-10-16 12:34:57 +08:00
parent 7367cc4750
commit 941ceaed31
3 changed files with 0 additions and 23 deletions
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19
ffmpeg/ffmpeg.c
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@ -257,30 +257,11 @@ obtain_next_frame(AVFormatContext *fmt_ctx, AVCodecContext *dec_ctx, int stream_
return err;
}
int64_t find_duration(AVFormatContext *fmt_ctx) {
AVPacket pkt = create_packet();
int err = 0;
int64_t duration = 0;
while (err >= 0) {
err = av_read_frame(fmt_ctx, &pkt);
if (pkt.pts != AV_NOPTS_VALUE) {
AVRational time_base = fmt_ctx->streams[pkt.stream_index]->time_base;
duration = FFMAX(duration, pkt.pts * 1000000000 * time_base.num / time_base.den);
}
av_packet_unref(&pkt);
}
if (err == AVERROR_EOF) {
return duration;
}
return err;
}
ThumbContext *create_thumb_context(AVStream *stream, AVFrame *frame) {
ThumbContext *thumb_ctx = av_mallocz(sizeof *thumb_ctx);
if (!thumb_ctx) {
return thumb_ctx;
}
// thumb_ctx->n = 0;
thumb_ctx->desc = av_pix_fmt_desc_get(frame->format);
int nb_frames = 100;
if (stream->disposition & AV_DISPOSITION_ATTACHED_PIC) {