Function av_bsf_send_packet

libavcodec/bsf.c:202–228

}

int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt)
{
    FFBSFContext *const bsfi = ffbsfcontext(ctx);
    int ret;

    if (!pkt || AVPACKET_IS_EMPTY(pkt)) {
        if (pkt)
            av_packet_unref(pkt);
        bsfi->eof = 1;
        return 0;
    }

    if (bsfi->eof) {
        av_log(ctx, AV_LOG_ERROR, "A non-NULL packet sent after an EOF.\n");
        return AVERROR(EINVAL);
    }

    if (!AVPACKET_IS_EMPTY(bsfi->buffer_pkt))
        return AVERROR(EAGAIN);

    ret = av_packet_make_refcounted(pkt);
    if (ret < 0)
        return ret;
    av_packet_move_ref(bsfi->buffer_pkt, pkt);

    return 0;
}

int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt)
{