libavcodec/qsvenc_jpeg.c

   1 /*
   2  * Intel MediaSDK QSV based MJPEG encoder
   3  *
   4  * This file is part of Libav.
   5  *
   6  * Libav 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.
  10  *
  11  * Libav 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.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with Libav; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21
  22 #include <stdint.h>
  23 #include <sys/types.h>
  24
  25 #include <mfx/mfxvideo.h>
  26
  27 #include "libavutil/common.h"
  28 #include "libavutil/opt.h"
  29
  30 #include "avcodec.h"
  31 #include "internal.h"
  32 #include "h264.h"
  33 #include "qsv.h"
  34 #include "qsv_internal.h"
  35 #include "qsvenc.h"
  36
  37 typedef struct QSVMJPEGEncContext {
  38     AVClass *class;
  39     QSVEncContext qsv;
  40 } QSVMJPEGEncContext;
  41
  42 static av_cold int qsv_enc_init(AVCodecContext *avctx)
  43 {
  44     QSVMJPEGEncContext *q = avctx->priv_data;
  45
  46     return ff_qsv_enc_init(avctx, &q->qsv);
  47 }
  48
  49 static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
  50                          const AVFrame *frame, int *got_packet)
  51 {
  52     QSVMJPEGEncContext *q = avctx->priv_data;
  53
  54     return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
  55 }
  56
  57 static av_cold int qsv_enc_close(AVCodecContext *avctx)
  58 {
  59     QSVMJPEGEncContext *q = avctx->priv_data;
  60
  61     return ff_qsv_enc_close(avctx, &q->qsv);
  62 }
  63
  64 #define OFFSET(x) offsetof(QSVMJPEGEncContext, x)
  65 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
  66 static const AVOption options[] = {
  67     { "async_depth", "Maximum processing parallelism", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 1, INT_MAX, VE },
  68     { NULL },
  69 };
  70
  71 static const AVClass class = {
  72     .class_name = "mjpeg_qsv encoder",
  73     .item_name  = av_default_item_name,
  74     .option     = options,
  75     .version    = LIBAVUTIL_VERSION_INT,
  76 };
  77
  78 static const AVCodecDefault qsv_enc_defaults[] = {
  79     { "global_quality",  "80" },
  80     { NULL },
  81 };
  82
  83 AVCodec ff_mjpeg_qsv_encoder = {
  84     .name           = "mjpeg_qsv",
  85     .long_name      = NULL_IF_CONFIG_SMALL("MJPEG (Intel Quick Sync Video acceleration)"),
  86     .priv_data_size = sizeof(QSVMJPEGEncContext),
  87     .type           = AVMEDIA_TYPE_VIDEO,
  88     .id             = AV_CODEC_ID_MJPEG,
  89     .init           = qsv_enc_init,
  90     .encode2        = qsv_enc_frame,
  91     .close          = qsv_enc_close,
  92     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HYBRID,
  93     .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
  94                                                     AV_PIX_FMT_QSV,
  95                                                     AV_PIX_FMT_NONE },
  96     .priv_class     = &class,
  97     .defaults       = qsv_enc_defaults,
  98     .wrapper_name   = "qsv",
  99 };