/*
* Video Acceleration API (video decoding)
* HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
*
* Copyright (C) 2008-2009 Splitted-Desktop Systems
*
* 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 "libavutil/log.h"
#include "vaapi_internal.h"
/**
* @addtogroup VAAPI_Decoding
*
* @{
*/
static void destroy_buffers(VADisplay display, VABufferID *buffers, unsigned int n_buffers)
{
unsigned int i;
for (i = 0; i < n_buffers; i++) {
if (buffers[i] != VA_INVALID_ID) {
vaDestroyBuffer(display, buffers[i]);
buffers[i] = VA_INVALID_ID;
}
}
}
int ff_vaapi_context_init(AVCodecContext *avctx)
{
FFVAContext * const vactx = ff_vaapi_get_context(avctx);
const struct vaapi_context * const user_vactx = avctx->hwaccel_context;
if (!user_vactx) {
av_log(avctx, AV_LOG_ERROR, "Hardware acceleration context (hwaccel_context) does not exist.\n");
return AVERROR(ENOSYS);
}
vactx->display = user_vactx->display;
vactx->config_id = user_vactx->config_id;
vactx->context_id = user_vactx->context_id;
vactx->pic_param_buf_id = VA_INVALID_ID;
vactx->iq_matrix_buf_id = VA_INVALID_ID;
vactx->bitplane_buf_id = VA_INVALID_ID;
return 0;
}
int ff_vaapi_context_fini(AVCodecContext *avctx)
{
return 0;
}
int ff_vaapi_render_picture(FFVAContext *vactx, VASurfaceID surface)
{
VABufferID va_buffers[3];
unsigned int n_va_buffers = 0;
if (vactx->pic_param_buf_id == VA_INVALID_ID)
return 0;
vaUnmapBuffer(vactx->display, vactx->pic_param_buf_id);
va_buffers[n_va_buffers++] = vactx->pic_param_buf_id;
if (vactx->iq_matrix_buf_id != VA_INVALID_ID) {
vaUnmapBuffer(vactx->display, vactx->iq_matrix_buf_id);
va_buffers[n_va_buffers++] = vactx->iq_matrix_buf_id;
}
if (vactx->bitplane_buf_id != VA_INVALID_ID) {
vaUnmapBuffer(vactx->display, vactx->bitplane_buf_id);
va_buffers[n_va_buffers++] = vactx->bitplane_buf_id;
}
if (vaBeginPicture(vactx->display, vactx->context_id,
surface) != VA_STATUS_SUCCESS)
return -1;
if (vaRenderPicture(vactx->display, vactx->context_id,
va_buffers, n_va_buffers) != VA_STATUS_SUCCESS)
return -1;
if (vaRenderPicture(vactx->display, vactx->context_id,
vactx->slice_buf_ids,
vactx->n_slice_buf_ids) != VA_STATUS_SUCCESS)
return -1;
if (vaEndPicture(vactx->display, vactx->context_id) != VA_STATUS_SUCCESS)
return -1;
return 0;
}
int ff_vaapi_commit_slices(FFVAContext *vactx)
{
VABufferID *slice_buf_ids;
VABufferID slice_param_buf_id, slice_data_buf_id;
if (vactx->slice_count == 0)
return 0;
slice_buf_ids =
av_fast_realloc(vactx->slice_buf_ids,
&vactx->slice_buf_ids_alloc,
(vactx->n_slice_buf_ids + 2) * sizeof(slice_buf_ids[0]));
if (!slice_buf_ids)
return -1;
vactx->slice_buf_ids = slice_buf_ids;
slice_param_buf_id = VA_INVALID_ID;
if (vaCreateBuffer(vactx->display, vactx->context_id,
VASliceParameterBufferType,
vactx->slice_param_size,
vactx->slice_count, vactx->slice_params,
&slice_param_buf_id) != VA_STATUS_SUCCESS)
return -1;
vactx->slice_count = 0;
slice_data_buf_id = VA_INVALID_ID;
if (vaCreateBuffer(vactx->display, vactx->context_id,
VASliceDataBufferType,
vactx->slice_data_size,
1, (void *)vactx->slice_data,
&slice_data_buf_id) != VA_STATUS_SUCCESS)
return -1;
vactx->slice_data = NULL;
vactx->slice_data_size = 0;
slice_buf_ids[vactx->n_slice_buf_ids++] = slice_param_buf_id;
slice_buf_ids[vactx->n_slice_buf_ids++] = slice_data_buf_id;
return 0;
}
static void *alloc_buffer(FFVAContext *vactx, int type, unsigned int size, uint32_t *buf_id)
{
void *data = NULL;
*buf_id = VA_INVALID_ID;
if (vaCreateBuffer(vactx->display, vactx->context_id,
type, size, 1, NULL, buf_id) == VA_STATUS_SUCCESS)
vaMapBuffer(vactx->display, *buf_id, &data);
return data;
}
void *ff_vaapi_alloc_pic_param(FFVAContext *vactx, unsigned int size)
{
return alloc_buffer(vactx, VAPictureParameterBufferType, size, &vactx->pic_param_buf_id);
}
void *ff_vaapi_alloc_iq_matrix(FFVAContext *vactx, unsigned int size)
{
return alloc_buffer(vactx, VAIQMatrixBufferType, size, &vactx->iq_matrix_buf_id);
}
uint8_t *ff_vaapi_alloc_bitplane(FFVAContext *vactx, uint32_t size)
{
return alloc_buffer(vactx, VABitPlaneBufferType, size, &vactx->bitplane_buf_id);
}
VASliceParameterBufferBase *ff_vaapi_alloc_slice(FFVAContext *vactx, const uint8_t *buffer, uint32_t size)
{
uint8_t *slice_params;
VASliceParameterBufferBase *slice_param;
if (!vactx->slice_data)
vactx->slice_data = buffer;
if (vactx->slice_data + vactx->slice_data_size != buffer) {
if (ff_vaapi_commit_slices(vactx) < 0)
return NULL;
vactx->slice_data = buffer;
}
slice_params =
av_fast_realloc(vactx->slice_params,
&vactx->slice_params_alloc,
(vactx->slice_count + 1) * vactx->slice_param_size);
if (!slice_params)
return NULL;
vactx->slice_params = slice_params;
slice_param = (VASliceParameterBufferBase *)(slice_params + vactx->slice_count * vactx->slice_param_size);
slice_param->slice_data_size = size;
slice_param->slice_data_offset = vactx->slice_data_size;
slice_param->slice_data_flag = VA_SLICE_DATA_FLAG_ALL;
vactx->slice_count++;
vactx->slice_data_size += size;
return slice_param;
}
void ff_vaapi_common_end_frame(AVCodecContext *avctx)
{
FFVAContext * const vactx = ff_vaapi_get_context(avctx);
ff_dlog(avctx, "ff_vaapi_common_end_frame()\n");
destroy_buffers(vactx->display, &vactx->pic_param_buf_id, 1);
destroy_buffers(vactx->display, &vactx->iq_matrix_buf_id, 1);
destroy_buffers(vactx->display, &vactx->bitplane_buf_id, 1);
destroy_buffers(vactx->display, vactx->slice_buf_ids, vactx->n_slice_buf_ids);
av_freep(&vactx->slice_buf_ids);
av_freep(&vactx->slice_params);
vactx->n_slice_buf_ids = 0;
vactx->slice_buf_ids_alloc = 0;
vactx->slice_count = 0;
vactx->slice_params_alloc = 0;
}
#if CONFIG_H263_VAAPI_HWACCEL || CONFIG_MPEG1_VAAPI_HWACCEL || \
CONFIG_MPEG2_VAAPI_HWACCEL || CONFIG_MPEG4_VAAPI_HWACCEL || \
CONFIG_VC1_VAAPI_HWACCEL || CONFIG_WMV3_VAAPI_HWACCEL
int ff_vaapi_mpeg_end_frame(AVCodecContext *avctx)
{
FFVAContext * const vactx = ff_vaapi_get_context(avctx);
MpegEncContext *s = avctx->priv_data;
int ret;
ret = ff_vaapi_commit_slices(vactx);
if (ret < 0)
goto finish;
ret = ff_vaapi_render_picture(vactx,
ff_vaapi_get_surface_id(s->current_picture_ptr->f));
if (ret < 0)
goto finish;
ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
finish:
ff_vaapi_common_end_frame(avctx);
return ret;
}
#endif
/* @} */