diff options
Diffstat (limited to 'ffmpeg/libavcodec/vaapi.c')
| -rw-r--r-- | ffmpeg/libavcodec/vaapi.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/ffmpeg/libavcodec/vaapi.c b/ffmpeg/libavcodec/vaapi.c new file mode 100644 index 0000000..a220a9d --- /dev/null +++ b/ffmpeg/libavcodec/vaapi.c @@ -0,0 +1,219 @@ +/* + * 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 "h264.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]) { + vaDestroyBuffer(display, buffers[i]); + buffers[i] = 0; + } + } +} + +int ff_vaapi_render_picture(struct vaapi_context *vactx, VASurfaceID surface) +{ + VABufferID va_buffers[3]; + unsigned int n_va_buffers = 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) { + vaUnmapBuffer(vactx->display, vactx->iq_matrix_buf_id); + va_buffers[n_va_buffers++] = vactx->iq_matrix_buf_id; + } + + if (vactx->bitplane_buf_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(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; +} + +static void *alloc_buffer(struct vaapi_context *vactx, int type, unsigned int size, uint32_t *buf_id) +{ + void *data = NULL; + + *buf_id = 0; + 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(struct vaapi_context *vactx, unsigned int size) +{ + return alloc_buffer(vactx, VAPictureParameterBufferType, size, &vactx->pic_param_buf_id); +} + +void *ff_vaapi_alloc_iq_matrix(struct vaapi_context *vactx, unsigned int size) +{ + return alloc_buffer(vactx, VAIQMatrixBufferType, size, &vactx->iq_matrix_buf_id); +} + +uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size) +{ + return alloc_buffer(vactx, VABitPlaneBufferType, size, &vactx->bitplane_buf_id); +} + +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 (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) +{ + struct vaapi_context * const vactx = avctx->hwaccel_context; + + av_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; +} + +int ff_vaapi_mpeg_end_frame(AVCodecContext *avctx) +{ + struct vaapi_context * const vactx = avctx->hwaccel_context; + 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)); + if (ret < 0) + goto finish; + + ff_mpeg_draw_horiz_band(s, 0, s->avctx->height); + +finish: + ff_vaapi_common_end_frame(avctx); + return ret; +} + +/* @} */ |