Function vaapi_encode_mpeg2_init

libavcodec/vaapi_encode_mpeg2.c:593–629

};

static av_cold int vaapi_encode_mpeg2_init(AVCodecContext *avctx)
{
    VAAPIEncodeContext       *ctx = avctx->priv_data;
    VAAPIEncodeMPEG2Context *priv = avctx->priv_data;

    ctx->codec = &vaapi_encode_type_mpeg2;

    if (avctx->profile == AV_PROFILE_UNKNOWN)
        avctx->profile = priv->profile;
    if (avctx->level == AV_LEVEL_UNKNOWN)
        avctx->level = priv->level;

    // Reject unknown levels (these are required to set f_code for
    // motion vector encoding).
    switch (avctx->level) {
    case 4: // High
    case 6: // High 1440
    case 8: // Main
    case 10: // Low
        break;
    default:
        av_log(avctx, AV_LOG_ERROR, "Unknown MPEG-2 level %d.\n",
               avctx->level);
        return AVERROR(EINVAL);
    }

    if (avctx->height % 4096 == 0 || avctx->width % 4096 == 0) {
        av_log(avctx, AV_LOG_ERROR, "MPEG-2 does not support picture "
               "height or width divisible by 4096.\n");
        return AVERROR(EINVAL);
    }

    ctx->desired_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE |
                                  VA_ENC_PACKED_HEADER_PICTURE;

    return ff_vaapi_encode_init(avctx);
}

static av_cold int vaapi_encode_mpeg2_close(AVCodecContext *avctx)
{