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  1. /*
  2.  * Intel MediaSDK QSV based H.264 enccoder
  3.  *
  4.  * copyright (c) 2013 Yukinori Yamazoe
  5.  *
  6.  * This file is part of FFmpeg.
  7.  *
  8.  * FFmpeg is free software; you can redistribute it and/or
  9.  * modify it under the terms of the GNU Lesser General Public
  10.  * License as published by the Free Software Foundation; either
  11.  * version 2.1 of the License, or (at your option) any later version.
  12.  *
  13.  * FFmpeg is distributed in the hope that it will be useful,
  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16.  * Lesser General Public License for more details.
  17.  *
  18.  * You should have received a copy of the GNU Lesser General Public
  19.  * License along with FFmpeg; if not, write to the Free Software
  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21.  */
  22.  
  23.  
  24. #include <stdint.h>
  25. #include <sys/types.h>
  26.  
  27. #include <mfx/mfxvideo.h>
  28.  
  29. #include "libavutil/opt.h"
  30.  
  31. #include "avcodec.h"
  32. #include "internal.h"
  33. #include "h264.h"
  34. #include "qsv.h"
  35. #include "qsv_internal.h"
  36. #include "qsvenc.h"
  37.  
  38. typedef struct QSVH264EncContext {
  39.     AVClass *class;
  40.     QSVEncContext qsv;
  41. } QSVH264EncContext;
  42.  
  43. static av_cold int qsv_enc_init(AVCodecContext *avctx)
  44. {
  45.     QSVH264EncContext *q = avctx->priv_data;
  46.  
  47.     return ff_qsv_enc_init(avctx, &q->qsv);
  48. }
  49.  
  50. static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
  51.                          const AVFrame *frame, int *got_packet)
  52. {
  53.     QSVH264EncContext *q = avctx->priv_data;
  54.  
  55.     return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
  56. }
  57.  
  58. static av_cold int qsv_enc_close(AVCodecContext *avctx)
  59. {
  60.     QSVH264EncContext *q = avctx->priv_data;
  61.  
  62.     return ff_qsv_enc_close(avctx, &q->qsv);
  63. }
  64.  
  65. #define OFFSET(x) offsetof(QSVH264EncContext, x)
  66. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
  67. static const AVOption options[] = {
  68.     { "async_depth", "Maximum processing parallelism", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VE },
  69.     { "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
  70.     { "avbr_accuracy",    "Accuracy of the AVBR ratecontrol",    OFFSET(qsv.avbr_accuracy),    AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
  71.     { "avbr_convergence", "Convergence of the AVBR ratecontrol", OFFSET(qsv.avbr_convergence), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
  72.     { "pic_timing_sei",    "Insert picture timing SEI with pic_struct_syntax element", OFFSET(qsv.pic_timing_sei), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE },
  73.  
  74. #if QSV_VERSION_ATLEAST(1,7)
  75.     { "look_ahead",       "Use VBR algorithm with look ahead",    OFFSET(qsv.look_ahead),       AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE },
  76.     { "look_ahead_depth", "Depth of look ahead in number frames", OFFSET(qsv.look_ahead_depth), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 100, VE },
  77. #endif
  78.  
  79. #if QSV_VERSION_ATLEAST(1,8)
  80.     { "look_ahead_downsampling", NULL, OFFSET(qsv.look_ahead_downsampling), AV_OPT_TYPE_INT, { .i64 = MFX_LOOKAHEAD_DS_UNKNOWN }, MFX_LOOKAHEAD_DS_UNKNOWN, MFX_LOOKAHEAD_DS_2x, VE, "look_ahead_downsampling" },
  81.     { "unknown"                , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_UNKNOWN }, INT_MIN, INT_MAX,     VE, "look_ahead_downsampling" },
  82.     { "off"                    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_OFF     }, INT_MIN, INT_MAX,     VE, "look_ahead_downsampling" },
  83.     { "2x"                     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_2x      }, INT_MIN, INT_MAX,     VE, "look_ahead_downsampling" },
  84. #endif
  85.  
  86.     { "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
  87.     { "unknown" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN      }, INT_MIN, INT_MAX,     VE, "profile" },
  88.     { "baseline", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_BASELINE }, INT_MIN, INT_MAX,     VE, "profile" },
  89.     { "main"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_MAIN     }, INT_MIN, INT_MAX,     VE, "profile" },
  90.     { "high"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_HIGH     }, INT_MIN, INT_MAX,     VE, "profile" },
  91.  
  92.     { "preset", NULL, OFFSET(qsv.preset), AV_OPT_TYPE_INT, { .i64 = MFX_TARGETUSAGE_BALANCED }, MFX_TARGETUSAGE_BEST_QUALITY, MFX_TARGETUSAGE_BEST_SPEED,   VE, "preset" },
  93.     { "veryfast",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_SPEED  },   INT_MIN, INT_MAX, VE, "preset" },
  94.     { "faster",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_6  },            INT_MIN, INT_MAX, VE, "preset" },
  95.     { "fast",        NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_5  },            INT_MIN, INT_MAX, VE, "preset" },
  96.     { "medium",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BALANCED  },     INT_MIN, INT_MAX, VE, "preset" },
  97.     { "slow",        NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_3  },            INT_MIN, INT_MAX, VE, "preset" },
  98.     { "slower",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_2  },            INT_MIN, INT_MAX, VE, "preset" },
  99.     { "veryslow",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_QUALITY  }, INT_MIN, INT_MAX, VE, "preset" },
  100.  
  101.     { NULL },
  102. };
  103.  
  104. static const AVClass class = {
  105.     .class_name = "h264_qsv encoder",
  106.     .item_name  = av_default_item_name,
  107.     .option     = options,
  108.     .version    = LIBAVUTIL_VERSION_INT,
  109. };
  110.  
  111. static const AVCodecDefault qsv_enc_defaults[] = {
  112.     { "b",         "1M"    },
  113.     { "refs",      "0"     },
  114.     // same as the x264 default
  115.     { "g",         "250"   },
  116.     { "bf",        "3"     },
  117.     { "coder",     "ac"    },
  118.  
  119.     { "flags",     "+cgop" },
  120.     { NULL },
  121. };
  122.  
  123. AVCodec ff_h264_qsv_encoder = {
  124.     .name           = "h264_qsv",
  125.     .long_name      = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration)"),
  126.     .priv_data_size = sizeof(QSVH264EncContext),
  127.     .type           = AVMEDIA_TYPE_VIDEO,
  128.     .id             = AV_CODEC_ID_H264,
  129.     .init           = qsv_enc_init,
  130.     .encode2        = qsv_enc_frame,
  131.     .close          = qsv_enc_close,
  132.     .capabilities   = AV_CODEC_CAP_DELAY,
  133.     .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
  134.                                                     AV_PIX_FMT_QSV,
  135.                                                     AV_PIX_FMT_NONE },
  136.     .priv_class     = &class,
  137.     .defaults       = qsv_enc_defaults,
  138. };
  139.