mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
3.0 KiB
109 lines
3.0 KiB
/* |
|
* 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 <mfx/mfxvideo.h> |
|
#include <stdlib.h> |
|
|
|
#include "libavutil/dict.h" |
|
#include "libavutil/hwcontext.h" |
|
#include "libavutil/hwcontext_qsv.h" |
|
#include "libavutil/mem.h" |
|
#include "libavutil/opt.h" |
|
#include "libavcodec/qsv.h" |
|
|
|
#include "ffmpeg.h" |
|
|
|
char *qsv_device = NULL; |
|
|
|
static int qsv_get_buffer(AVCodecContext *s, AVFrame *frame, int flags) |
|
{ |
|
InputStream *ist = s->opaque; |
|
|
|
return av_hwframe_get_buffer(ist->hw_frames_ctx, frame, 0); |
|
} |
|
|
|
static void qsv_uninit(AVCodecContext *s) |
|
{ |
|
InputStream *ist = s->opaque; |
|
av_buffer_unref(&ist->hw_frames_ctx); |
|
} |
|
|
|
static int qsv_device_init(InputStream *ist) |
|
{ |
|
int err; |
|
AVDictionary *dict = NULL; |
|
|
|
if (qsv_device) { |
|
err = av_dict_set(&dict, "child_device", qsv_device, 0); |
|
if (err < 0) |
|
return err; |
|
} |
|
|
|
err = av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_QSV, |
|
ist->hwaccel_device, dict, 0); |
|
if (err < 0) { |
|
av_log(NULL, AV_LOG_ERROR, "Error creating a QSV device\n"); |
|
goto err_out; |
|
} |
|
|
|
err_out: |
|
if (dict) |
|
av_dict_free(&dict); |
|
|
|
return err; |
|
} |
|
|
|
int qsv_init(AVCodecContext *s) |
|
{ |
|
InputStream *ist = s->opaque; |
|
AVHWFramesContext *frames_ctx; |
|
AVQSVFramesContext *frames_hwctx; |
|
int ret; |
|
|
|
if (!hw_device_ctx) { |
|
ret = qsv_device_init(ist); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
av_buffer_unref(&ist->hw_frames_ctx); |
|
ist->hw_frames_ctx = av_hwframe_ctx_alloc(hw_device_ctx); |
|
if (!ist->hw_frames_ctx) |
|
return AVERROR(ENOMEM); |
|
|
|
frames_ctx = (AVHWFramesContext*)ist->hw_frames_ctx->data; |
|
frames_hwctx = frames_ctx->hwctx; |
|
|
|
frames_ctx->width = FFALIGN(s->coded_width, 32); |
|
frames_ctx->height = FFALIGN(s->coded_height, 32); |
|
frames_ctx->format = AV_PIX_FMT_QSV; |
|
frames_ctx->sw_format = s->sw_pix_fmt; |
|
frames_ctx->initial_pool_size = 64; |
|
frames_hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET; |
|
|
|
ret = av_hwframe_ctx_init(ist->hw_frames_ctx); |
|
if (ret < 0) { |
|
av_log(NULL, AV_LOG_ERROR, "Error initializing a QSV frame pool\n"); |
|
return ret; |
|
} |
|
|
|
ist->hwaccel_get_buffer = qsv_get_buffer; |
|
ist->hwaccel_uninit = qsv_uninit; |
|
|
|
return 0; |
|
}
|
|
|