Function mediacodec_encode

libavcodec/mediacodecenc.c:839–883

}

static int mediacodec_encode(AVCodecContext *avctx, AVPacket *pkt)
{
    MediaCodecEncContext *s = avctx->priv_data;
    int ret;

    // Return on three case:
    // 1. Serious error
    // 2. Got a packet success
    // 3. No AVFrame is available yet (don't return if get_frame return EOF)
    while (1) {
        if (s->bsf) {
            ret = av_bsf_receive_packet(s->bsf, pkt);
            if (!ret)
                return 0;
            if (ret != AVERROR(EAGAIN))
                return ret;
        }

        ret = mediacodec_receive(avctx, pkt);
        if (s->bsf) {
            if (!ret || ret == AVERROR_EOF)
                ret = av_bsf_send_packet(s->bsf, pkt);
        } else {
            if (!ret)
                return 0;
        }

        if (ret < 0 && ret != AVERROR(EAGAIN))
            return ret;

        if (!s->frame->buf[0]) {
            ret = ff_encode_get_frame(avctx, s->frame);
            if (ret && ret != AVERROR_EOF)
                return ret;
        }

        ret = mediacodec_send(avctx, s->frame->buf[0] ? s->frame : NULL);
        if (!ret)
            av_frame_unref(s->frame);
        else if (ret != AVERROR(EAGAIN))
            return ret;
    }

    return 0;
}

static int mediacodec_send_dummy_frame(AVCodecContext *avctx)
{