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  1. /*
  2.  * Intel MediaSDK QSV based MPEG-2 encoder
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  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.
  10.  *
  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.
  15.  *
  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
  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 "qsv.h"
  33. #include "qsv_internal.h"
  34. #include "qsvenc.h"
  35.  
  36. typedef struct QSVMpeg2EncContext {
  37.     AVClass *class;
  38.     QSVEncContext qsv;
  39. } QSVMpeg2EncContext;
  40.  
  41. static av_cold int qsv_enc_init(AVCodecContext *avctx)
  42. {
  43.     QSVMpeg2EncContext *q = avctx->priv_data;
  44.  
  45.     return ff_qsv_enc_init(avctx, &q->qsv);
  46. }
  47.  
  48. static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
  49.                          const AVFrame *frame, int *got_packet)
  50. {
  51.     QSVMpeg2EncContext *q = avctx->priv_data;
  52.  
  53.     return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
  54. }
  55.  
  56. static av_cold int qsv_enc_close(AVCodecContext *avctx)
  57. {
  58.     QSVMpeg2EncContext *q = avctx->priv_data;
  59.  
  60.     return ff_qsv_enc_close(avctx, &q->qsv);
  61. }
  62.  
  63. #define OFFSET(x) offsetof(QSVMpeg2EncContext, x)
  64. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
  65. static const AVOption options[] = {
  66.     { "async_depth", "Maximum processing parallelism", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VE },
  67.     { "avbr_accuracy",    "Accuracy of the AVBR ratecontrol",    OFFSET(qsv.avbr_accuracy),    AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
  68.     { "avbr_convergence", "Convergence of the AVBR ratecontrol", OFFSET(qsv.avbr_convergence), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
  69.  
  70.     { "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
  71.     { "unknown", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN        }, INT_MIN, INT_MAX,     VE, "profile" },
  72.     { "simple",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_SIMPLE   }, INT_MIN, INT_MAX,     VE, "profile" },
  73.     { "main",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_MAIN     }, INT_MIN, INT_MAX,     VE, "profile" },
  74.     { "high",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_HIGH     }, INT_MIN, INT_MAX,     VE, "profile" },
  75.  
  76.     { "preset", NULL, OFFSET(qsv.preset), AV_OPT_TYPE_INT, { .i64 = MFX_TARGETUSAGE_BALANCED }, 0, 7,   VE, "preset" },
  77.     { "fast",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_SPEED  },   INT_MIN, INT_MAX, VE, "preset" },
  78.     { "medium", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BALANCED  },     INT_MIN, INT_MAX, VE, "preset" },
  79.     { "slow",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_QUALITY  }, INT_MIN, INT_MAX, VE, "preset" },
  80.  
  81.     { NULL },
  82. };
  83.  
  84. static const AVClass class = {
  85.     .class_name = "mpeg2_qsv encoder",
  86.     .item_name  = av_default_item_name,
  87.     .option     = options,
  88.     .version    = LIBAVUTIL_VERSION_INT,
  89. };
  90.  
  91. static const AVCodecDefault qsv_enc_defaults[] = {
  92.     { "b",         "1M"    },
  93.     { "refs",      "0"     },
  94.     // same as the x264 default
  95.     { "g",         "250"   },
  96.     { "bf",        "3"     },
  97.  
  98.     { "flags",     "+cgop" },
  99.     { NULL },
  100. };
  101.  
  102. AVCodec ff_mpeg2_qsv_encoder = {
  103.     .name           = "mpeg2_qsv",
  104.     .long_name      = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
  105.     .priv_data_size = sizeof(QSVMpeg2EncContext),
  106.     .type           = AVMEDIA_TYPE_VIDEO,
  107.     .id             = AV_CODEC_ID_MPEG2VIDEO,
  108.     .init           = qsv_enc_init,
  109.     .encode2        = qsv_enc_frame,
  110.     .close          = qsv_enc_close,
  111.     .capabilities   = AV_CODEC_CAP_DELAY,
  112.     .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
  113.                                                     AV_PIX_FMT_QSV,
  114.                                                     AV_PIX_FMT_NONE },
  115.     .priv_class     = &class,
  116.     .defaults       = qsv_enc_defaults,
  117. };
  118.