2 * Intel MediaSDK QSV based MPEG2 video decoder
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "libavutil/common.h"
25 #include "libavutil/opt.h"
30 typedef struct QSVMPEG2Context {
35 static av_cold int qsv_decode_close(AVCodecContext *avctx)
37 QSVMPEG2Context *s = avctx->priv_data;
39 ff_qsv_decode_close(&s->qsv);
44 static av_cold int qsv_decode_init(AVCodecContext *avctx)
49 static int qsv_decode_frame(AVCodecContext *avctx, void *data,
50 int *got_frame, AVPacket *avpkt)
52 QSVMPEG2Context *s = avctx->priv_data;
53 AVFrame *frame = data;
55 return ff_qsv_decode(avctx, &s->qsv, frame, got_frame, avpkt);
58 static void qsv_decode_flush(AVCodecContext *avctx)
60 QSVMPEG2Context *s = avctx->priv_data;
61 ff_qsv_decode_reset(avctx, &s->qsv);
64 AVHWAccel ff_mpeg2_qsv_hwaccel = {
66 .type = AVMEDIA_TYPE_VIDEO,
67 .id = AV_CODEC_ID_MPEG2VIDEO,
68 .pix_fmt = AV_PIX_FMT_QSV,
71 #define OFFSET(x) offsetof(QSVMPEG2Context, x)
72 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
73 static const AVOption options[] = {
74 { "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 },
78 static const AVClass class = {
79 .class_name = "mpeg2_qsv",
80 .item_name = av_default_item_name,
82 .version = LIBAVUTIL_VERSION_INT,
85 AVCodec ff_mpeg2_qsv_decoder = {
87 .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
88 .priv_data_size = sizeof(QSVMPEG2Context),
89 .type = AVMEDIA_TYPE_VIDEO,
90 .id = AV_CODEC_ID_MPEG2VIDEO,
91 .init = qsv_decode_init,
92 .decode = qsv_decode_frame,
93 .flush = qsv_decode_flush,
94 .close = qsv_decode_close,
95 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1,
97 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,