/* * Intel MediaSDK QSV based VC-1 video decoder * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <stdint.h> #include <string.h> #include "libavutil/common.h" #include "libavutil/fifo.h" #include "libavutil/opt.h" #include "avcodec.h" #include "qsvdec.h" typedef struct QSVVC1Context { AVClass *class; QSVContext qsv; } QSVVC1Context; static av_cold int qsv_decode_close(AVCodecContext *avctx) { QSVVC1Context *s = avctx->priv_data; ff_qsv_decode_close(&s->qsv); return 0; } static int qsv_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt) { QSVVC1Context *s = avctx->priv_data; AVFrame *frame = data; return ff_qsv_decode(avctx, &s->qsv, frame, got_frame, avpkt); } static void qsv_decode_flush(AVCodecContext *avctx) { QSVVC1Context *s = avctx->priv_data; ff_qsv_decode_reset(avctx, &s->qsv); } AVHWAccel ff_vc1_qsv_hwaccel = { .name = "vc1_qsv", .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_VC1, .pix_fmt = AV_PIX_FMT_QSV, }; #define OFFSET(x) offsetof(QSVVC1Context, x) #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM static const AVOption options[] = { { "async_depth", "Internal parallelization depth, the higher the value the higher the latency.", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VD }, { NULL }, }; static const AVClass class = { .class_name = "vc1_qsv", .item_name = av_default_item_name, .option = options, .version = LIBAVUTIL_VERSION_INT, }; AVCodec ff_vc1_qsv_decoder = { .name = "vc1_qsv", .long_name = NULL_IF_CONFIG_SMALL("VC-1 video (Intel Quick Sync Video acceleration)"), .priv_data_size = sizeof(QSVVC1Context), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_VC1, .init = NULL, .decode = qsv_decode_frame, .flush = qsv_decode_flush, .close = qsv_decode_close, .capabilities = AV_CODEC_CAP_DELAY, .priv_class = &class, };