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Add common VA API data structures and helpers.

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Originally committed as revision 18136 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Gwenole Beauchesne
2009-03-22 01:32:27 +00:00
parent ff8084cf1c
commit b38d7298bd
3 changed files with 488 additions and 0 deletions
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197
libavcodec/vaapi.c Normal file
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/*
* 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 "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]) {
vaDestroyBuffer(display, buffers[i]);
buffers[i] = 0;
}
}
}
static int render_picture(struct vaapi_context *vactx, VASurfaceID surface)
{
VABufferID va_buffers[3];
unsigned int n_va_buffers = 0;
if (vaCreateBuffer(vactx->display, vactx->context_id,
VAPictureParameterBufferType,
vactx->pic_param_size,
1, &vactx->pic_param,
&vactx->pic_param_buf_id) != VA_STATUS_SUCCESS)
return -1;
va_buffers[n_va_buffers++] = vactx->pic_param_buf_id;
if (vactx->iq_matrix_present) {
if (vaCreateBuffer(vactx->display, vactx->context_id,
VAIQMatrixBufferType,
vactx->iq_matrix_size,
1, &vactx->iq_matrix,
&vactx->iq_matrix_buf_id) != VA_STATUS_SUCCESS)
return -1;
va_buffers[n_va_buffers++] = vactx->iq_matrix_buf_id;
}
if (vactx->bitplane_buffer) {
if (vaCreateBuffer(vactx->display, vactx->context_id,
VABitPlaneBufferType,
vactx->bitplane_buffer_size,
1, vactx->bitplane_buffer,
&vactx->bitplane_buf_id) != VA_STATUS_SUCCESS)
return -1;
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;
}
static int commit_slices(struct vaapi_context *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 = 0;
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 = 0;
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;
}
VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *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 (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;
}
int ff_vaapi_common_end_frame(MpegEncContext *s)
{
struct vaapi_context * const vactx = s->avctx->hwaccel_context;
int ret = -1;
dprintf(s->avctx, "ff_vaapi_common_end_frame()\n");
if (commit_slices(vactx) < 0)
goto done;
if (vactx->n_slice_buf_ids > 0) {
if (render_picture(vactx, ff_vaapi_get_surface(s->current_picture_ptr)) < 0)
goto done;
ff_draw_horiz_band(s, 0, s->avctx->height);
}
ret = 0;
done:
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->bitplane_buffer);
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;
return ret;
}
/* @} */

232
libavcodec/vaapi.h Normal file
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/*
* Video Acceleration API (shared data between FFmpeg and the video player)
* 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
*/
#ifndef AVCODEC_VAAPI_H
#define AVCODEC_VAAPI_H
#include <stdint.h>
/**
* \defgroup VAAPI_Decoding VA API Decoding
* \ingroup Decoder
* @{
*/
/**
* This structure is used to share data between the FFmpeg library and
* the client video application.
* This shall be zero-allocated and available as
* AVCodecContext.hwaccel_context. All user members can be set once
* during initialization or through each AVCodecContext.get_buffer()
* function call. In any case, they must be valid prior to calling
* decoding functions.
*/
struct vaapi_context {
/**
* Window system dependent data
*
* - encoding: unused
* - decoding: Set by user
*/
void *display;
/**
* Configuration ID
*
* - encoding: unused
* - decoding: Set by user
*/
uint32_t config_id;
/**
* Context ID (video decode pipeline)
*
* - encoding: unused
* - decoding: Set by user
*/
uint32_t context_id;
/**
* VAPictureParameterBuffer ID
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
VABufferID pic_param_buf_id;
/**
* VAIQMatrixBuffer ID
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
VABufferID iq_matrix_buf_id;
/**
* VABitPlaneBuffer ID (for VC-1 decoding)
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
VABufferID bitplane_buf_id;
/**
* Slice parameter/data buffer IDs
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
VABufferID *slice_buf_ids;
/**
* Number of effective slice buffer IDs to send to the HW
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
unsigned int n_slice_buf_ids;
/**
* Size of pre-allocated slice_buf_ids
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
unsigned int slice_buf_ids_alloc;
/**
* Picture parameter buffer
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
union {
VAPictureParameterBufferMPEG2 mpeg2;
VAPictureParameterBufferMPEG4 mpeg4;
VAPictureParameterBufferH264 h264;
VAPictureParameterBufferVC1 vc1;
} pic_param;
/**
* Size of a VAPictureParameterBuffer element
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
unsigned int pic_param_size;
/**
* Inverse quantization matrix buffer
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
union {
VAIQMatrixBufferMPEG2 mpeg2;
VAIQMatrixBufferMPEG4 mpeg4;
VAIQMatrixBufferH264 h264;
} iq_matrix;
/**
* Size of a VAIQMatrixBuffer element
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
unsigned int iq_matrix_size;
/**
* Flag: is quantization matrix present?
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
uint8_t iq_matrix_present;
/**
* VC-1 bitplane buffer
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
uint8_t *bitplane_buffer;
/**
* Size of VC-1 bitplane buffer
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
unsigned int bitplane_buffer_size;
/**
* Pointer to VASliceParameterBuffers
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
void *slice_params;
/**
* Size of a VASliceParameterBuffer element
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
unsigned int slice_param_size;
/**
* Size of pre-allocated slice_params
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
unsigned int slice_params_alloc;
/**
* Number of slices currently filled in
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
unsigned int slice_count;
/**
* Pointer to slice data buffer base
* - encoding: unused
* - decoding: Set by libavcodec
*/
const uint8_t *slice_data;
/**
* Current size of slice data
*
* - encoding: unused
* - decoding: Set by libavcodec
*/
uint32_t slice_data_size;
};
/* @} */
#endif /* AVCODEC_VAAPI_H */

59
libavcodec/vaapi_internal.h Normal file
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/*
* 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
*/
#ifndef AVCODEC_VAAPI_INTERNAL_H
#define AVCODEC_VAAPI_INTERNAL_H
#include <va/va.h>
#include "vaapi.h"
#include "avcodec.h"
#include "mpegvideo.h"
/**
* \addtogroup VAAPI_Decoding
*
* @{
*/
/** Extract VASurfaceID from a Picture */
static inline VASurfaceID ff_vaapi_get_surface(Picture *pic)
{
return (uintptr_t)pic->data[3];
}
/** Common AVHWAccel.end_frame() implementation */
int ff_vaapi_common_end_frame(MpegEncContext *s);
/**
* Allocate a new slice descriptor for the input slice.
*
* @param vactx the VA API context
* @param buffer the slice data buffer base
* @param size the size of the slice in bytes
* @return the newly allocated slice parameter
*/
VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size);
/* @} */
#endif /* AVCODEC_VAAPI_INTERNAL_H */