-/*
- * MPEG-2 HW decode acceleration through VA API
- *
- * Copyright (C) 2008-2009 Splitted-Desktop Systems
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "mpegutils.h"
-#include "mpegvideo.h"
-#include "vaapi_internal.h"
-#include "internal.h"
-
-/** Reconstruct bitstream f_code */
-static inline int mpeg2_get_f_code(const MpegEncContext *s)
-{
- return (s->mpeg_f_code[0][0] << 12) | (s->mpeg_f_code[0][1] << 8) |
- (s->mpeg_f_code[1][0] << 4) | s->mpeg_f_code[1][1];
-}
-
-/** Determine frame start: first field for field picture or frame picture */
-static inline int mpeg2_get_is_frame_start(const MpegEncContext *s)
-{
- return s->first_field || s->picture_structure == PICT_FRAME;
-}
-
-static int vaapi_mpeg2_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
-{
- const MpegEncContext *s = avctx->priv_data;
- struct vaapi_context * const vactx = avctx->hwaccel_context;
- VAPictureParameterBufferMPEG2 *pic_param;
- VAIQMatrixBufferMPEG2 *iq_matrix;
- int i;
-
- vactx->slice_param_size = sizeof(VASliceParameterBufferMPEG2);
-
- /* Fill in VAPictureParameterBufferMPEG2 */
- pic_param = ff_vaapi_alloc_pic_param(vactx, sizeof(VAPictureParameterBufferMPEG2));
- if (!pic_param)
- return -1;
- pic_param->horizontal_size = s->width;
- pic_param->vertical_size = s->height;
- pic_param->forward_reference_picture = VA_INVALID_ID;
- pic_param->backward_reference_picture = VA_INVALID_ID;
- pic_param->picture_coding_type = s->pict_type;
- pic_param->f_code = mpeg2_get_f_code(s);
- pic_param->picture_coding_extension.value = 0; /* reset all bits */
- pic_param->picture_coding_extension.bits.intra_dc_precision = s->intra_dc_precision;
- pic_param->picture_coding_extension.bits.picture_structure = s->picture_structure;
- pic_param->picture_coding_extension.bits.top_field_first = s->top_field_first;
- pic_param->picture_coding_extension.bits.frame_pred_frame_dct = s->frame_pred_frame_dct;
- pic_param->picture_coding_extension.bits.concealment_motion_vectors = s->concealment_motion_vectors;
- pic_param->picture_coding_extension.bits.q_scale_type = s->q_scale_type;
- pic_param->picture_coding_extension.bits.intra_vlc_format = s->intra_vlc_format;
- pic_param->picture_coding_extension.bits.alternate_scan = s->alternate_scan;
- pic_param->picture_coding_extension.bits.repeat_first_field = s->repeat_first_field;
- pic_param->picture_coding_extension.bits.progressive_frame = s->progressive_frame;
- pic_param->picture_coding_extension.bits.is_first_field = mpeg2_get_is_frame_start(s);
-
- switch (s->pict_type) {
- case AV_PICTURE_TYPE_B:
- pic_param->backward_reference_picture = ff_vaapi_get_surface_id(s->next_picture.f);
- // fall-through
- case AV_PICTURE_TYPE_P:
- pic_param->forward_reference_picture = ff_vaapi_get_surface_id(s->last_picture.f);
- break;
- }
-
- /* Fill in VAIQMatrixBufferMPEG2 */
- iq_matrix = ff_vaapi_alloc_iq_matrix(vactx, sizeof(VAIQMatrixBufferMPEG2));
- if (!iq_matrix)
- return -1;
- iq_matrix->load_intra_quantiser_matrix = 1;
- iq_matrix->load_non_intra_quantiser_matrix = 1;
- iq_matrix->load_chroma_intra_quantiser_matrix = 1;
- iq_matrix->load_chroma_non_intra_quantiser_matrix = 1;
-
- for (i = 0; i < 64; i++) {
- int n = s->idsp.idct_permutation[ff_zigzag_direct[i]];
- iq_matrix->intra_quantiser_matrix[i] = s->intra_matrix[n];
- iq_matrix->non_intra_quantiser_matrix[i] = s->inter_matrix[n];
- iq_matrix->chroma_intra_quantiser_matrix[i] = s->chroma_intra_matrix[n];
- iq_matrix->chroma_non_intra_quantiser_matrix[i] = s->chroma_inter_matrix[n];
- }
- return 0;
-}
-
-static int vaapi_mpeg2_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
-{
- const MpegEncContext *s = avctx->priv_data;
- VASliceParameterBufferMPEG2 *slice_param;
- GetBitContext gb;
- uint32_t quantiser_scale_code, intra_slice_flag, macroblock_offset;
-
- /* Determine macroblock_offset */
- init_get_bits(&gb, buffer, 8 * size);
- if (get_bits_long(&gb, 32) >> 8 != 1) /* start code */
- return AVERROR_INVALIDDATA;
- quantiser_scale_code = get_bits(&gb, 5);
- intra_slice_flag = get_bits1(&gb);
- if (intra_slice_flag) {
- skip_bits(&gb, 8);
- while (get_bits1(&gb) != 0)
- skip_bits(&gb, 8);
- }
- macroblock_offset = get_bits_count(&gb);
-
- /* Fill in VASliceParameterBufferMPEG2 */
- slice_param = (VASliceParameterBufferMPEG2 *)ff_vaapi_alloc_slice(avctx->hwaccel_context, buffer, size);
- if (!slice_param)
- return -1;
- slice_param->macroblock_offset = macroblock_offset;
- slice_param->slice_horizontal_position = s->mb_x;
- slice_param->slice_vertical_position = s->mb_y >> (s->picture_structure != PICT_FRAME);
- slice_param->quantiser_scale_code = quantiser_scale_code;
- slice_param->intra_slice_flag = intra_slice_flag;
- return 0;
-}
-
-AVHWAccel ff_mpeg2_vaapi_hwaccel = {
- .name = "mpeg2_vaapi",
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_MPEG2VIDEO,
- .pix_fmt = AV_PIX_FMT_VAAPI,
- .start_frame = vaapi_mpeg2_start_frame,
- .end_frame = ff_vaapi_mpeg_end_frame,
- .decode_slice = vaapi_mpeg2_decode_slice,
-};
+/*
+ * MPEG-2 HW decode acceleration through VA API
+ *
+ * Copyright (C) 2008-2009 Splitted-Desktop Systems
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "mpegutils.h"
+#include "mpegvideo.h"
+#include "internal.h"
+#include "vaapi_decode.h"
+
+/** Reconstruct bitstream f_code */
+static inline int mpeg2_get_f_code(const MpegEncContext *s)
+{
+ return (s->mpeg_f_code[0][0] << 12) | (s->mpeg_f_code[0][1] << 8) |
+ (s->mpeg_f_code[1][0] << 4) | s->mpeg_f_code[1][1];
+}
+
+/** Determine frame start: first field for field picture or frame picture */
+static inline int mpeg2_get_is_frame_start(const MpegEncContext *s)
+{
+ return s->first_field || s->picture_structure == PICT_FRAME;
+}
+
+static int vaapi_mpeg2_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
+{
+ const MpegEncContext *s = avctx->priv_data;
+ VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
+ VAPictureParameterBufferMPEG2 pic_param;
+ VAIQMatrixBufferMPEG2 iq_matrix;
+ int i, err;
+
+ pic->output_surface = ff_vaapi_get_surface_id(s->current_picture_ptr->f);
+
+ pic_param = (VAPictureParameterBufferMPEG2) {
+ .horizontal_size = s->width,
+ .vertical_size = s->height,
+ .forward_reference_picture = VA_INVALID_ID,
+ .backward_reference_picture = VA_INVALID_ID,
+ .picture_coding_type = s->pict_type,
+ .f_code = mpeg2_get_f_code(s),
+ .picture_coding_extension.bits = {
+ .intra_dc_precision = s->intra_dc_precision,
+ .picture_structure = s->picture_structure,
+ .top_field_first = s->top_field_first,
+ .frame_pred_frame_dct = s->frame_pred_frame_dct,
+ .concealment_motion_vectors = s->concealment_motion_vectors,
+ .q_scale_type = s->q_scale_type,
+ .intra_vlc_format = s->intra_vlc_format,
+ .alternate_scan = s->alternate_scan,
+ .repeat_first_field = s->repeat_first_field,
+ .progressive_frame = s->progressive_frame,
+ .is_first_field = mpeg2_get_is_frame_start(s),
+ },
+ };
+
+ switch (s->pict_type) {
+ case AV_PICTURE_TYPE_B:
+ pic_param.backward_reference_picture = ff_vaapi_get_surface_id(s->next_picture.f);
+ // fall-through
+ case AV_PICTURE_TYPE_P:
+ pic_param.forward_reference_picture = ff_vaapi_get_surface_id(s->last_picture.f);
+ break;
+ }
+
+ err = ff_vaapi_decode_make_param_buffer(avctx, pic,
+ VAPictureParameterBufferType,
+ &pic_param, sizeof(pic_param));
+ if (err < 0)
+ goto fail;
+
+ iq_matrix.load_intra_quantiser_matrix = 1;
+ iq_matrix.load_non_intra_quantiser_matrix = 1;
+ iq_matrix.load_chroma_intra_quantiser_matrix = 1;
+ iq_matrix.load_chroma_non_intra_quantiser_matrix = 1;
+
+ for (i = 0; i < 64; i++) {
+ int n = s->idsp.idct_permutation[ff_zigzag_direct[i]];
+ iq_matrix.intra_quantiser_matrix[i] = s->intra_matrix[n];
+ iq_matrix.non_intra_quantiser_matrix[i] = s->inter_matrix[n];
+ iq_matrix.chroma_intra_quantiser_matrix[i] = s->chroma_intra_matrix[n];
+ iq_matrix.chroma_non_intra_quantiser_matrix[i] = s->chroma_inter_matrix[n];
+ }
+
+ err = ff_vaapi_decode_make_param_buffer(avctx, pic,
+ VAIQMatrixBufferType,
+ &iq_matrix, sizeof(iq_matrix));
+ if (err < 0)
+ goto fail;
+
+ return 0;
+
+fail:
+ ff_vaapi_decode_cancel(avctx, pic);
+ return err;
+}
+
+static int vaapi_mpeg2_end_frame(AVCodecContext *avctx)
+{
+ MpegEncContext *s = avctx->priv_data;
+ VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
+ int ret;
+
+ ret = ff_vaapi_decode_issue(avctx, pic);
+ if (ret < 0)
+ goto fail;
+
+ ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
+
+fail:
+ return ret;
+}
+
+static int vaapi_mpeg2_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
+{
+ const MpegEncContext *s = avctx->priv_data;
+ VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
+ VASliceParameterBufferMPEG2 slice_param;
+ GetBitContext gb;
+ uint32_t quantiser_scale_code, intra_slice_flag, macroblock_offset;
+ int err;
+
+ /* Determine macroblock_offset */
+ init_get_bits(&gb, buffer, 8 * size);
+ if (get_bits_long(&gb, 32) >> 8 != 1) /* start code */
+ return AVERROR_INVALIDDATA;
+ quantiser_scale_code = get_bits(&gb, 5);
+ intra_slice_flag = get_bits1(&gb);
+ if (intra_slice_flag) {
+ skip_bits(&gb, 8);
+ while (get_bits1(&gb) != 0)
+ skip_bits(&gb, 8);
+ }
+ macroblock_offset = get_bits_count(&gb);
+
+ slice_param = (VASliceParameterBufferMPEG2) {
+ .slice_data_size = size,
+ .slice_data_offset = 0,
+ .slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
+ .macroblock_offset = macroblock_offset,
+ .slice_horizontal_position = s->mb_x,
+ .slice_vertical_position = s->mb_y >> (s->picture_structure != PICT_FRAME),
+ .quantiser_scale_code = quantiser_scale_code,
+ .intra_slice_flag = intra_slice_flag,
+ };
+
+ err = ff_vaapi_decode_make_slice_buffer(avctx, pic,
+ &slice_param, sizeof(slice_param),
+ buffer, size);
+ if (err < 0) {
+ ff_vaapi_decode_cancel(avctx, pic);
+ return err;
+ }
+
+
+ return 0;
+}
+
+AVHWAccel ff_mpeg2_vaapi_hwaccel = {
+ .name = "mpeg2_vaapi",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG2VIDEO,
+ .pix_fmt = AV_PIX_FMT_VAAPI,
+ .start_frame = &vaapi_mpeg2_start_frame,
+ .end_frame = &vaapi_mpeg2_end_frame,
+ .decode_slice = &vaapi_mpeg2_decode_slice,
+ .frame_priv_data_size = sizeof(VAAPIDecodePicture),
+ .init = &ff_vaapi_decode_init,
+ .uninit = &ff_vaapi_decode_uninit,
+ .priv_data_size = sizeof(VAAPIDecodeContext),
+};
projects / libav.git / commitdiff