From b38d7298bdc31e000c3d533d99c0cae1ef57d1c2 Mon Sep 17 00:00:00 2001 From: Gwenole Beauchesne Date: Sun, 22 Mar 2009 01:32:27 +0000 Subject: [PATCH] Add common VA API data structures and helpers. Originally committed as revision 18136 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/vaapi.c | 197 ++++++++++++++++++++++++++++++ libavcodec/vaapi.h | 232 ++++++++++++++++++++++++++++++++++++ libavcodec/vaapi_internal.h | 59 +++++++++ 3 files changed, 488 insertions(+) create mode 100644 libavcodec/vaapi.c create mode 100644 libavcodec/vaapi.h create mode 100644 libavcodec/vaapi_internal.h diff --git a/libavcodec/vaapi.c b/libavcodec/vaapi.c new file mode 100644 index 0000000000..70949b9242 --- /dev/null +++ b/libavcodec/vaapi.c @@ -0,0 +1,197 @@ +/* + * 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; +} + +/* @} */ diff --git a/libavcodec/vaapi.h b/libavcodec/vaapi.h new file mode 100644 index 0000000000..d62066281e --- /dev/null +++ b/libavcodec/vaapi.h @@ -0,0 +1,232 @@ +/* + * 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 + +/** + * \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 */ diff --git a/libavcodec/vaapi_internal.h b/libavcodec/vaapi_internal.h new file mode 100644 index 0000000000..345289086e --- /dev/null +++ b/libavcodec/vaapi_internal.h @@ -0,0 +1,59 @@ +/* + * 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 +#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 */