summaryrefslogtreecommitdiff
path: root/libavcodec/vdpauvideo.c
diff options
context:
space:
mode:
Diffstat (limited to 'libavcodec/vdpauvideo.c')
-rw-r--r--libavcodec/vdpauvideo.c183
1 files changed, 183 insertions, 0 deletions
diff --git a/libavcodec/vdpauvideo.c b/libavcodec/vdpauvideo.c
new file mode 100644
index 0000000000..0ac05eb89c
--- /dev/null
+++ b/libavcodec/vdpauvideo.c
@@ -0,0 +1,183 @@
+/*
+ * Video Decode and Presentation API for UNIX (VDPAU) is used for
+ * HW decode acceleration for MPEG-1/2, H.264 and VC-1.
+ *
+ * Copyright (c) 2008 NVIDIA.
+ *
+ * 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 <limits.h>
+#include "avcodec.h"
+#include "h264.h"
+
+#undef NDEBUG
+#include <assert.h>
+
+#include "vdpau_render.h"
+#include "vdpau_internal.h"
+
+/**
+ * \addtogroup VDPAU_Decoding
+ *
+ * @{
+ */
+
+static void VDPAU_h264_set_reference_frames(H264Context *h)
+{
+ MpegEncContext * s = &h->s;
+ struct vdpau_render_state * render, * render_ref;
+ VdpReferenceFrameH264 * rf, * rf2;
+ Picture * pic;
+ int i, list, pic_frame_idx;
+
+ render = (struct vdpau_render_state*)s->current_picture_ptr->data[0];
+ assert(render);
+
+ rf = &render->info.h264.referenceFrames[0];
+#define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
+
+ for (list = 0; list < 2; ++list) {
+ Picture **lp = list ? h->long_ref : h->short_ref;
+ int ls = list ? h->long_ref_count : h->short_ref_count;
+
+ for (i = 0; i < ls; ++i) {
+ pic = lp[i];
+ if (!pic || !pic->reference)
+ continue;
+ pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
+
+ render_ref = (struct vdpau_render_state*)pic->data[0];
+ assert(render_ref);
+
+ rf2 = &render->info.h264.referenceFrames[0];
+ while (rf2 != rf) {
+ if (
+ (rf2->surface == render_ref->surface)
+ && (rf2->is_long_term == pic->long_ref)
+ && (rf2->frame_idx == pic_frame_idx)
+ )
+ break;
+ ++rf2;
+ }
+ if (rf2 != rf) {
+ rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
+ rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
+ continue;
+ }
+
+ if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
+ continue;
+
+ rf->surface = render_ref->surface;
+ rf->is_long_term = pic->long_ref;
+ rf->top_is_reference = (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
+ rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
+ rf->field_order_cnt[0] = pic->field_poc[0];
+ rf->field_order_cnt[1] = pic->field_poc[1];
+ rf->frame_idx = pic_frame_idx;
+
+ ++rf;
+ }
+ }
+
+ for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
+ rf->surface = VDP_INVALID_HANDLE;
+ rf->is_long_term = 0;
+ rf->top_is_reference = 0;
+ rf->bottom_is_reference = 0;
+ rf->field_order_cnt[0] = 0;
+ rf->field_order_cnt[1] = 0;
+ rf->frame_idx = 0;
+ }
+}
+
+void ff_VDPAU_h264_add_data_chunk(H264Context *h, const uint8_t *buf, int buf_size)
+{
+ MpegEncContext * s = &h->s;
+ struct vdpau_render_state * render;
+
+ render = (struct vdpau_render_state*)s->current_picture_ptr->data[0];
+ assert(render);
+
+ if (!render->bitstreamBuffersUsed)
+ VDPAU_h264_set_reference_frames(h);
+
+ render->bitstreamBuffers= av_fast_realloc(
+ render->bitstreamBuffers,
+ &render->bitstreamBuffersAlloced,
+ sizeof(*render->bitstreamBuffers)*(render->bitstreamBuffersUsed + 1)
+ );
+
+ render->bitstreamBuffers[render->bitstreamBuffersUsed].struct_version = VDP_BITSTREAM_BUFFER_VERSION;
+ render->bitstreamBuffers[render->bitstreamBuffersUsed].bitstream = buf;
+ render->bitstreamBuffers[render->bitstreamBuffersUsed].bitstream_bytes = buf_size;
+ render->bitstreamBuffersUsed++;
+}
+
+void ff_VDPAU_h264_picture_complete(H264Context *h)
+{
+ MpegEncContext * s = &h->s;
+ struct vdpau_render_state * render;
+
+ render = (struct vdpau_render_state*)s->current_picture_ptr->data[0];
+ assert(render);
+
+ render->info.h264.slice_count = h->slice_num;
+ if (render->info.h264.slice_count < 1)
+ return;
+
+ for (int i = 0; i < 2; ++i) {
+ int foc = s->current_picture_ptr->field_poc[i];
+ if (foc == INT_MAX)
+ foc = 0;
+ render->info.h264.field_order_cnt[i] = foc;
+ }
+
+ render->info.h264.is_reference = s->current_picture_ptr->reference ? VDP_TRUE : VDP_FALSE;
+ render->info.h264.frame_num = h->frame_num;
+ render->info.h264.field_pic_flag = s->picture_structure != PICT_FRAME;
+ render->info.h264.bottom_field_flag = s->picture_structure == PICT_BOTTOM_FIELD;
+ render->info.h264.num_ref_frames = h->sps.ref_frame_count;
+ render->info.h264.mb_adaptive_frame_field_flag = h->sps.mb_aff;
+ render->info.h264.constrained_intra_pred_flag = h->pps.constrained_intra_pred;
+ render->info.h264.weighted_pred_flag = h->pps.weighted_pred;
+ render->info.h264.weighted_bipred_idc = h->pps.weighted_bipred_idc;
+ render->info.h264.frame_mbs_only_flag = h->sps.frame_mbs_only_flag;
+ render->info.h264.transform_8x8_mode_flag = h->pps.transform_8x8_mode;
+ render->info.h264.chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
+ render->info.h264.second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
+ render->info.h264.pic_init_qp_minus26 = h->pps.init_qp - 26;
+ render->info.h264.num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
+ render->info.h264.num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
+ render->info.h264.log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
+ render->info.h264.pic_order_cnt_type = h->sps.poc_type;
+ render->info.h264.log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
+ render->info.h264.delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
+ render->info.h264.direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
+ render->info.h264.entropy_coding_mode_flag = h->pps.cabac;
+ render->info.h264.pic_order_present_flag = h->pps.pic_order_present;
+ render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
+ render->info.h264.redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present;
+ memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
+ memcpy(render->info.h264.scaling_lists_8x8, h->pps.scaling_matrix8, sizeof(render->info.h264.scaling_lists_8x8));
+
+ ff_draw_horiz_band(s, 0, s->avctx->height);
+ render->bitstreamBuffersUsed = 0;
+}
+
+/* @}*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 09:11:35 +0000