Method IndexAudioPacket

src/core/indexing.cpp:308–344

}

uint32_t FFMS_Indexer::IndexAudioPacket(int Track, AVPacket *Packet, SharedAVContext &Context, FFMS_Index &TrackIndices) {
    AVCodecContext *CodecContext = Context.CodecContext;
    int64_t StartSample = Context.CurrentSample;
    int Ret = avcodec_send_packet(CodecContext, Packet);
    if (Ret != 0) {
        if (ErrorHandling == FFMS_IEH_ABORT) {
            throw FFMS_Exception(FFMS_ERROR_CODEC, FFMS_ERROR_DECODING, "Audio decoding error");
        } else if (ErrorHandling == FFMS_IEH_CLEAR_TRACK) {
            TrackIndices[Track].clear();
            IndexMask.erase(Track);
        } else if (ErrorHandling == FFMS_IEH_STOP_TRACK) {
            IndexMask.erase(Track);
        }
    }

    while (true) {
        av_frame_unref(DecodeFrame);
        Ret = avcodec_receive_frame(CodecContext, DecodeFrame);
        if (Ret == 0) {
            CheckAudioProperties(Track, CodecContext);
            Context.CurrentSample += DecodeFrame->nb_samples;
        } else if (Ret == AVERROR_EOF || Ret == AVERROR(EAGAIN)) {
            break;
        } else {
            if (ErrorHandling == FFMS_IEH_ABORT) {
                throw FFMS_Exception(FFMS_ERROR_CODEC, FFMS_ERROR_DECODING, "Audio decoding error");
            } else if (ErrorHandling == FFMS_IEH_CLEAR_TRACK) {
                TrackIndices[Track].clear();
                IndexMask.erase(Track);
            } else if (ErrorHandling == FFMS_IEH_STOP_TRACK) {
                IndexMask.erase(Track);
            }
        }
    }

    return static_cast<uint32_t>(Context.CurrentSample - StartSample);
}

void FFMS_Indexer::CheckAudioProperties(int Track, AVCodecContext *Context) {
    auto it = LastAudioProperties.find(Track);