Function encode_frame

fftools/ffmpeg_enc.c:611–732

}

static int encode_frame(OutputFile *of, OutputStream *ost, AVFrame *frame,
                        AVPacket *pkt)
{
    Encoder            *e = ost->enc;
    EncoderPriv       *ep = ep_from_enc(e);
    AVCodecContext   *enc = e->enc_ctx;
    const char *type_desc = av_get_media_type_string(enc->codec_type);
    const char    *action = frame ? "encode" : "flush";
    int ret;

    if (frame) {
        FrameData *fd = frame_data(frame);

        if (!fd)
            return AVERROR(ENOMEM);

        fd->wallclock[LATENCY_PROBE_ENC_PRE] = av_gettime_relative();

        if (ost->enc_stats_pre.io)
            enc_stats_write(ost, &ost->enc_stats_pre, frame, NULL,
                            e->frames_encoded);

        e->frames_encoded++;
        e->samples_encoded += frame->nb_samples;

        if (debug_ts) {
            av_log(e, AV_LOG_INFO, "encoder <- type:%s "
                   "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
                   type_desc,
                   av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
                   enc->time_base.num, enc->time_base.den);
        }

        if (frame->sample_aspect_ratio.num && !ost->frame_aspect_ratio.num)
            enc->sample_aspect_ratio = frame->sample_aspect_ratio;
    }

    update_benchmark(NULL);

    ret = avcodec_send_frame(enc, frame);
    if (ret < 0 && !(ret == AVERROR_EOF && !frame)) {
        av_log(e, AV_LOG_ERROR, "Error submitting %s frame to the encoder\n",
               type_desc);
        return ret;
    }

    while (1) {
        FrameData *fd;

        av_packet_unref(pkt);

        ret = avcodec_receive_packet(enc, pkt);
        update_benchmark("%s_%s %d.%d", action, type_desc,
                         of->index, ost->index);

        pkt->time_base = enc->time_base;

        /* if two pass, output log on success and EOF */