diff options
Diffstat (limited to 'libavcodec/h264dec.c')
| -rw-r--r-- | libavcodec/h264dec.c | 1292 |
1 files changed, 1292 insertions, 0 deletions
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c new file mode 100644 index 0000000000..8e07e7eb10 --- /dev/null +++ b/libavcodec/h264dec.c @@ -0,0 +1,1292 @@ +/* + * H.26L/H.264/AVC/JVT/14496-10/... decoder + * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> + * + * 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 + */ + +/** + * @file + * H.264 / AVC / MPEG-4 part10 codec. + * @author Michael Niedermayer <michaelni@gmx.at> + */ + +#define UNCHECKED_BITSTREAM_READER 1 + +#include "libavutil/avassert.h" +#include "libavutil/display.h" +#include "libavutil/imgutils.h" +#include "libavutil/opt.h" +#include "libavutil/stereo3d.h" +#include "libavutil/timer.h" +#include "internal.h" +#include "bytestream.h" +#include "cabac.h" +#include "cabac_functions.h" +#include "error_resilience.h" +#include "avcodec.h" +#include "h264dec.h" +#include "h2645_parse.h" +#include "h264data.h" +#include "h264chroma.h" +#include "h264_mvpred.h" +#include "golomb.h" +#include "mathops.h" +#include "me_cmp.h" +#include "mpegutils.h" +#include "profiles.h" +#include "rectangle.h" +#include "thread.h" +#include "vdpau_compat.h" + +static int h264_decode_end(AVCodecContext *avctx); + +const uint16_t ff_h264_mb_sizes[4] = { 256, 384, 512, 768 }; + +int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx) +{ + H264Context *h = avctx->priv_data; + return h && h->ps.sps ? h->ps.sps->num_reorder_frames : 0; +} + +static void h264_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type, + int (*mv)[2][4][2], + int mb_x, int mb_y, int mb_intra, int mb_skipped) +{ + H264Context *h = opaque; + H264SliceContext *sl = &h->slice_ctx[0]; + + sl->mb_x = mb_x; + sl->mb_y = mb_y; + sl->mb_xy = mb_x + mb_y * h->mb_stride; + memset(sl->non_zero_count_cache, 0, sizeof(sl->non_zero_count_cache)); + av_assert1(ref >= 0); + /* FIXME: It is possible albeit uncommon that slice references + * differ between slices. We take the easy approach and ignore + * it for now. If this turns out to have any relevance in + * practice then correct remapping should be added. */ + if (ref >= sl->ref_count[0]) + ref = 0; + if (!sl->ref_list[0][ref].data[0]) { + av_log(h->avctx, AV_LOG_DEBUG, "Reference not available for error concealing\n"); + ref = 0; + } + if ((sl->ref_list[0][ref].reference&3) != 3) { + av_log(h->avctx, AV_LOG_DEBUG, "Reference invalid\n"); + return; + } + fill_rectangle(&h->cur_pic.ref_index[0][4 * sl->mb_xy], + 2, 2, 2, ref, 1); + fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1); + fill_rectangle(sl->mv_cache[0][scan8[0]], 4, 4, 8, + pack16to32((*mv)[0][0][0], (*mv)[0][0][1]), 4); + sl->mb_mbaff = + sl->mb_field_decoding_flag = 0; + ff_h264_hl_decode_mb(h, &h->slice_ctx[0]); +} + +void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, + int y, int height) +{ + AVCodecContext *avctx = h->avctx; + const AVFrame *src = h->cur_pic.f; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt); + int vshift = desc->log2_chroma_h; + const int field_pic = h->picture_structure != PICT_FRAME; + if (field_pic) { + height <<= 1; + y <<= 1; + } + + height = FFMIN(height, avctx->height - y); + + if (field_pic && h->first_field && !(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD)) + return; + + if (avctx->draw_horiz_band) { + int offset[AV_NUM_DATA_POINTERS]; + int i; + + offset[0] = y * src->linesize[0]; + offset[1] = + offset[2] = (y >> vshift) * src->linesize[1]; + for (i = 3; i < AV_NUM_DATA_POINTERS; i++) + offset[i] = 0; + + emms_c(); + + avctx->draw_horiz_band(avctx, src, offset, + y, h->picture_structure, height); + } +} + +void ff_h264_free_tables(H264Context *h) +{ + int i; + + av_freep(&h->intra4x4_pred_mode); + av_freep(&h->chroma_pred_mode_table); + av_freep(&h->cbp_table); + av_freep(&h->mvd_table[0]); + av_freep(&h->mvd_table[1]); + av_freep(&h->direct_table); + av_freep(&h->non_zero_count); + av_freep(&h->slice_table_base); + h->slice_table = NULL; + av_freep(&h->list_counts); + + av_freep(&h->mb2b_xy); + av_freep(&h->mb2br_xy); + + av_buffer_pool_uninit(&h->qscale_table_pool); + av_buffer_pool_uninit(&h->mb_type_pool); + av_buffer_pool_uninit(&h->motion_val_pool); + av_buffer_pool_uninit(&h->ref_index_pool); + + for (i = 0; i < h->nb_slice_ctx; i++) { + H264SliceContext *sl = &h->slice_ctx[i]; + + av_freep(&sl->dc_val_base); + av_freep(&sl->er.mb_index2xy); + av_freep(&sl->er.error_status_table); + av_freep(&sl->er.er_temp_buffer); + + av_freep(&sl->bipred_scratchpad); + av_freep(&sl->edge_emu_buffer); + av_freep(&sl->top_borders[0]); + av_freep(&sl->top_borders[1]); + + sl->bipred_scratchpad_allocated = 0; + sl->edge_emu_buffer_allocated = 0; + sl->top_borders_allocated[0] = 0; + sl->top_borders_allocated[1] = 0; + } +} + +int ff_h264_alloc_tables(H264Context *h) +{ + const int big_mb_num = h->mb_stride * (h->mb_height + 1); + const int row_mb_num = 2*h->mb_stride*FFMAX(h->nb_slice_ctx, 1); + int x, y; + + FF_ALLOCZ_ARRAY_OR_GOTO(h->avctx, h->intra4x4_pred_mode, + row_mb_num, 8 * sizeof(uint8_t), fail) + h->slice_ctx[0].intra4x4_pred_mode = h->intra4x4_pred_mode; + + FF_ALLOCZ_OR_GOTO(h->avctx, h->non_zero_count, + big_mb_num * 48 * sizeof(uint8_t), fail) + FF_ALLOCZ_OR_GOTO(h->avctx, h->slice_table_base, + (big_mb_num + h->mb_stride) * sizeof(*h->slice_table_base), fail) + FF_ALLOCZ_OR_GOTO(h->avctx, h->cbp_table, + big_mb_num * sizeof(uint16_t), fail) + FF_ALLOCZ_OR_GOTO(h->avctx, h->chroma_pred_mode_table, + big_mb_num * sizeof(uint8_t), fail) + FF_ALLOCZ_ARRAY_OR_GOTO(h->avctx, h->mvd_table[0], + row_mb_num, 16 * sizeof(uint8_t), fail); + FF_ALLOCZ_ARRAY_OR_GOTO(h->avctx, h->mvd_table[1], + row_mb_num, 16 * sizeof(uint8_t), fail); + h->slice_ctx[0].mvd_table[0] = h->mvd_table[0]; + h->slice_ctx[0].mvd_table[1] = h->mvd_table[1]; + + FF_ALLOCZ_OR_GOTO(h->avctx, h->direct_table, + 4 * big_mb_num * sizeof(uint8_t), fail); + FF_ALLOCZ_OR_GOTO(h->avctx, h->list_counts, + big_mb_num * sizeof(uint8_t), fail) + + memset(h->slice_table_base, -1, + (big_mb_num + h->mb_stride) * sizeof(*h->slice_table_base)); + h->slice_table = h->slice_table_base + h->mb_stride * 2 + 1; + + FF_ALLOCZ_OR_GOTO(h->avctx, h->mb2b_xy, + big_mb_num * sizeof(uint32_t), fail); + FF_ALLOCZ_OR_GOTO(h->avctx, h->mb2br_xy, + big_mb_num * sizeof(uint32_t), fail); + for (y = 0; y < h->mb_height; y++) + for (x = 0; x < h->mb_width; x++) { + const int mb_xy = x + y * h->mb_stride; + const int b_xy = 4 * x + 4 * y * h->b_stride; + + h->mb2b_xy[mb_xy] = b_xy; + h->mb2br_xy[mb_xy] = 8 * (FMO ? mb_xy : (mb_xy % (2 * h->mb_stride))); + } + + return 0; + +fail: + ff_h264_free_tables(h); + return AVERROR(ENOMEM); +} + +/** + * Init context + * Allocate buffers which are not shared amongst multiple threads. + */ +int ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl) +{ + ERContext *er = &sl->er; + int mb_array_size = h->mb_height * h->mb_stride; + int y_size = (2 * h->mb_width + 1) * (2 * h->mb_height + 1); + int c_size = h->mb_stride * (h->mb_height + 1); + int yc_size = y_size + 2 * c_size; + int x, y, i; + + sl->ref_cache[0][scan8[5] + 1] = + sl->ref_cache[0][scan8[7] + 1] = + sl->ref_cache[0][scan8[13] + 1] = + sl->ref_cache[1][scan8[5] + 1] = + sl->ref_cache[1][scan8[7] + 1] = + sl->ref_cache[1][scan8[13] + 1] = PART_NOT_AVAILABLE; + + if (sl != h->slice_ctx) { + memset(er, 0, sizeof(*er)); + } else + if (CONFIG_ERROR_RESILIENCE) { + + /* init ER */ + er->avctx = h->avctx; + er->decode_mb = h264_er_decode_mb; + er->opaque = h; + er->quarter_sample = 1; + + er->mb_num = h->mb_num; + er->mb_width = h->mb_width; + er->mb_height = h->mb_height; + er->mb_stride = h->mb_stride; + er->b8_stride = h->mb_width * 2 + 1; + + // error resilience code looks cleaner with this + FF_ALLOCZ_OR_GOTO(h->avctx, er->mb_index2xy, + (h->mb_num + 1) * sizeof(int), fail); + + for (y = 0; y < h->mb_height; y++) + for (x = 0; x < h->mb_width; x++) + er->mb_index2xy[x + y * h->mb_width] = x + y * h->mb_stride; + + er->mb_index2xy[h->mb_height * h->mb_width] = (h->mb_height - 1) * + h->mb_stride + h->mb_width; + + FF_ALLOCZ_OR_GOTO(h->avctx, er->error_status_table, + mb_array_size * sizeof(uint8_t), fail); + + FF_ALLOC_OR_GOTO(h->avctx, er->er_temp_buffer, + h->mb_height * h->mb_stride, fail); + + FF_ALLOCZ_OR_GOTO(h->avctx, sl->dc_val_base, + yc_size * sizeof(int16_t), fail); + er->dc_val[0] = sl->dc_val_base + h->mb_width * 2 + 2; + er->dc_val[1] = sl->dc_val_base + y_size + h->mb_stride + 1; + er->dc_val[2] = er->dc_val[1] + c_size; + for (i = 0; i < yc_size; i++) + sl->dc_val_base[i] = 1024; + } + + return 0; + +fail: + return AVERROR(ENOMEM); // ff_h264_free_tables will clean up for us +} + +static int h264_init_context(AVCodecContext *avctx, H264Context *h) +{ + int i; + + h->avctx = avctx; + h->backup_width = -1; + h->backup_height = -1; + h->backup_pix_fmt = AV_PIX_FMT_NONE; + h->cur_chroma_format_idc = -1; + + h->picture_structure = PICT_FRAME; + h->workaround_bugs = avctx->workaround_bugs; + h->flags = avctx->flags; + h->poc.prev_poc_msb = 1 << 16; + h->recovery_frame = -1; + h->frame_recovered = 0; + h->poc.prev_frame_num = -1; + h->sei.frame_packing.frame_packing_arrangement_cancel_flag = -1; + h->sei.unregistered.x264_build = -1; + + h->next_outputed_poc = INT_MIN; + for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) + h->last_pocs[i] = INT_MIN; + + ff_h264_sei_uninit(&h->sei); + + avctx->chroma_sample_location = AVCHROMA_LOC_LEFT; + + h->nb_slice_ctx = (avctx->active_thread_type & FF_THREAD_SLICE) ? avctx->thread_count : 1; + h->slice_ctx = av_mallocz_array(h->nb_slice_ctx, sizeof(*h->slice_ctx)); + if (!h->slice_ctx) { + h->nb_slice_ctx = 0; + return AVERROR(ENOMEM); + } + + for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { + h->DPB[i].f = av_frame_alloc(); + if (!h->DPB[i].f) + return AVERROR(ENOMEM); + } + + h->cur_pic.f = av_frame_alloc(); + if (!h->cur_pic.f) + return AVERROR(ENOMEM); + + h->last_pic_for_ec.f = av_frame_alloc(); + if (!h->last_pic_for_ec.f) + return AVERROR(ENOMEM); + + for (i = 0; i < h->nb_slice_ctx; i++) + h->slice_ctx[i].h264 = h; + + return 0; +} + +static av_cold int h264_decode_end(AVCodecContext *avctx) +{ + H264Context *h = avctx->priv_data; + int i; + + ff_h264_remove_all_refs(h); + ff_h264_free_tables(h); + + for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { + ff_h264_unref_picture(h, &h->DPB[i]); + av_frame_free(&h->DPB[i].f); + } + memset(h->delayed_pic, 0, sizeof(h->delayed_pic)); + + h->cur_pic_ptr = NULL; + + av_freep(&h->slice_ctx); + h->nb_slice_ctx = 0; + + ff_h264_sei_uninit(&h->sei); + ff_h264_ps_uninit(&h->ps); + + ff_h2645_packet_uninit(&h->pkt); + + ff_h264_unref_picture(h, &h->cur_pic); + av_frame_free(&h->cur_pic.f); + ff_h264_unref_picture(h, &h->last_pic_for_ec); + av_frame_free(&h->last_pic_for_ec.f); + + return 0; +} + +static AVOnce h264_vlc_init = AV_ONCE_INIT; + +av_cold int ff_h264_decode_init(AVCodecContext *avctx) +{ + H264Context *h = avctx->priv_data; + int ret; + + ret = h264_init_context(avctx, h); + if (ret < 0) + return ret; + + ret = ff_thread_once(&h264_vlc_init, ff_h264_decode_init_vlc); + if (ret != 0) { + av_log(avctx, AV_LOG_ERROR, "pthread_once has failed."); + return AVERROR_UNKNOWN; + } + + if (avctx->codec_id == AV_CODEC_ID_H264) { + if (avctx->ticks_per_frame == 1) { + if(h->avctx->time_base.den < INT_MAX/2) { + h->avctx->time_base.den *= 2; + } else + h->avctx->time_base.num /= 2; + } + avctx->ticks_per_frame = 2; + } + + if (avctx->extradata_size > 0 && avctx->extradata) { + ret = ff_h264_decode_extradata(avctx->extradata, avctx->extradata_size, + &h->ps, &h->is_avc, &h->nal_length_size, + avctx->err_recognition, avctx); + if (ret < 0) { + h264_decode_end(avctx); + return ret; + } + } + + if (h->ps.sps && h->ps.sps->bitstream_restriction_flag && + h->avctx->has_b_frames < h->ps.sps->num_reorder_frames) { + h->avctx->has_b_frames = h->ps.sps->num_reorder_frames; + } + + avctx->internal->allocate_progress = 1; + + ff_h264_flush_change(h); + + if (h->enable_er < 0 && (avctx->active_thread_type & FF_THREAD_SLICE)) + h->enable_er = 0; + + if (h->enable_er && (avctx->active_thread_type & FF_THREAD_SLICE)) { + av_log(avctx, AV_LOG_WARNING, + "Error resilience with slice threads is enabled. It is unsafe and unsupported and may crash. " + "Use it at your own risk\n"); + } + + return 0; +} + +#if HAVE_THREADS +static int decode_init_thread_copy(AVCodecContext *avctx) +{ + H264Context *h = avctx->priv_data; + int ret; + + if (!avctx->internal->is_copy) + return 0; + + memset(h, 0, sizeof(*h)); + + ret = h264_init_context(avctx, h); + if (ret < 0) + return ret; + + h->context_initialized = 0; + + return 0; +} +#endif + +/** + * Run setup operations that must be run after slice header decoding. + * This includes finding the next displayed frame. + * + * @param h h264 master context + * @param setup_finished enough NALs have been read that we can call + * ff_thread_finish_setup() + */ +static void decode_postinit(H264Context *h, int setup_finished) +{ + const SPS *sps = h->ps.sps; + H264Picture *out = h->cur_pic_ptr; + H264Picture *cur = h->cur_pic_ptr; + int i, pics, out_of_order, out_idx; + + if (h->next_output_pic) + return; + + if (cur->field_poc[0] == INT_MAX || cur->field_poc[1] == INT_MAX) { + /* FIXME: if we have two PAFF fields in one packet, we can't start + * the next thread here. If we have one field per packet, we can. + * The check in decode_nal_units() is not good enough to find this + * yet, so we assume the worst for now. */ + // if (setup_finished) + // ff_thread_finish_setup(h->avctx); + if (cur->field_poc[0] == INT_MAX && cur->field_poc[1] == INT_MAX) + return; + if (h->avctx->hwaccel || h->missing_fields <=1) + return; + } + + cur->mmco_reset = h->mmco_reset; + h->mmco_reset = 0; + + // FIXME do something with unavailable reference frames + + /* Sort B-frames into display order */ + if (sps->bitstream_restriction_flag || + h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) { + h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames); + } + + for (i = 0; 1; i++) { + if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){ + if(i) + h->last_pocs[i-1] = cur->poc; + break; + } else if(i) { + h->last_pocs[i-1]= h->last_pocs[i]; + } + } + out_of_order = MAX_DELAYED_PIC_COUNT - i; + if( cur->f->pict_type == AV_PICTURE_TYPE_B + || (h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > INT_MIN && h->last_pocs[MAX_DELAYED_PIC_COUNT-1] - h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > 2)) + out_of_order = FFMAX(out_of_order, 1); + if (out_of_order == MAX_DELAYED_PIC_COUNT) { + av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]); + for (i = 1; i < MAX_DELAYED_PIC_COUNT; i++) + h->last_pocs[i] = INT_MIN; + h->last_pocs[0] = cur->poc; + cur->mmco_reset = 1; + } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){ + av_log(h->avctx, AV_LOG_INFO, "Increasing reorder buffer to %d\n", out_of_order); + h->avctx->has_b_frames = out_of_order; + } + + pics = 0; + while (h->delayed_pic[pics]) + pics++; + + av_assert0(pics <= MAX_DELAYED_PIC_COUNT); + + h->delayed_pic[pics++] = cur; + if (cur->reference == 0) + cur->reference = DELAYED_PIC_REF; + + out = h->delayed_pic[0]; + out_idx = 0; + for (i = 1; h->delayed_pic[i] && + !h->delayed_pic[i]->f->key_frame && + !h->delayed_pic[i]->mmco_reset; + i++) + if (h->delayed_pic[i]->poc < out->poc) { + out = h->delayed_pic[i]; + out_idx = i; + } + if (h->avctx->has_b_frames == 0 && + (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) + h->next_outputed_poc = INT_MIN; + out_of_order = out->poc < h->next_outputed_poc; + + if (out_of_order || pics > h->avctx->has_b_frames) { + out->reference &= ~DELAYED_PIC_REF; + for (i = out_idx; h->delayed_pic[i]; i++) + h->delayed_pic[i] = h->delayed_pic[i + 1]; + } + if (!out_of_order && pics > h->avctx->has_b_frames) { + h->next_output_pic = out; + if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) { + h->next_outputed_poc = INT_MIN; + } else + h->next_outputed_poc = out->poc; + } else { + av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : ""); + } + + if (h->next_output_pic) { + if (h->next_output_pic->recovered) { + // We have reached an recovery point and all frames after it in + // display order are "recovered". + h->frame_recovered |= FRAME_RECOVERED_SEI; + } + h->next_output_pic->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI); + } + + if (setup_finished && !h->avctx->hwaccel) { + ff_thread_finish_setup(h->avctx); + + if (h->avctx->active_thread_type & FF_THREAD_FRAME) + h->setup_finished = 1; + } +} + +/** + * instantaneous decoder refresh. + */ +static void idr(H264Context *h) +{ + int i; + ff_h264_remove_all_refs(h); + h->poc.prev_frame_num = + h->poc.prev_frame_num_offset = 0; + h->poc.prev_poc_msb = 1<<16; + h->poc.prev_poc_lsb = 0; + for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) + h->last_pocs[i] = INT_MIN; +} + +/* forget old pics after a seek */ +void ff_h264_flush_change(H264Context *h) +{ + int i, j; + + h->next_outputed_poc = INT_MIN; + h->prev_interlaced_frame = 1; + idr(h); + + h->poc.prev_frame_num = -1; + if (h->cur_pic_ptr) { + h->cur_pic_ptr->reference = 0; + for (j=i=0; h->delayed_pic[i]; i++) + if (h->delayed_pic[i] != h->cur_pic_ptr) + h->delayed_pic[j++] = h->delayed_pic[i]; + h->delayed_pic[j] = NULL; + } + ff_h264_unref_picture(h, &h->last_pic_for_ec); + + h->first_field = 0; + ff_h264_sei_uninit(&h->sei); + h->recovery_frame = -1; + h->frame_recovered = 0; + h->current_slice = 0; + h->mmco_reset = 1; +} + +/* forget old pics after a seek */ +static void flush_dpb(AVCodecContext *avctx) +{ + H264Context *h = avctx->priv_data; + int i; + + memset(h->delayed_pic, 0, sizeof(h->delayed_pic)); + + ff_h264_flush_change(h); + + for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) + ff_h264_unref_picture(h, &h->DPB[i]); + h->cur_pic_ptr = NULL; + ff_h264_unref_picture(h, &h->cur_pic); + + h->mb_y = 0; + + ff_h264_free_tables(h); + h->context_initialized = 0; +} + +#if FF_API_CAP_VDPAU +static const uint8_t start_code[] = { 0x00, 0x00, 0x01 }; +#endif + +static int get_last_needed_nal(H264Context *h) +{ + int nals_needed = 0; + int first_slice = 0; + int i; + int ret; + + for (i = 0; i < h->pkt.nb_nals; i++) { + H2645NAL *nal = &h->pkt.nals[i]; + GetBitContext gb; + + /* packets can sometimes contain multiple PPS/SPS, + * e.g. two PAFF field pictures in one packet, or a demuxer + * which splits NALs strangely if so, when frame threading we + * can't start the next thread until we've read all of them */ + switch (nal->type) { + case NAL_SPS: + case NAL_PPS: + nals_needed = i; + break; + case NAL_DPA: + case NAL_IDR_SLICE: + case NAL_SLICE: + ret = init_get_bits8(&gb, nal->data + 1, (nal->size - 1)); + if (ret < 0) + return ret; + if (!get_ue_golomb_long(&gb) || // first_mb_in_slice + !first_slice || + first_slice != nal->type) + nals_needed = i; + if (!first_slice) + first_slice = nal->type; + } + } + + return nals_needed; +} + +static void debug_green_metadata(const H264SEIGreenMetaData *gm, void *logctx) +{ + av_log(logctx, AV_LOG_DEBUG, "Green Metadata Info SEI message\n"); + av_log(logctx, AV_LOG_DEBUG, " green_metadata_type: %d\n", gm->green_metadata_type); + + if (gm->green_metadata_type == 0) { + av_log(logctx, AV_LOG_DEBUG, " green_metadata_period_type: %d\n", gm->period_type); + + if (gm->period_type == 2) + av_log(logctx, AV_LOG_DEBUG, " green_metadata_num_seconds: %d\n", gm->num_seconds); + else if (gm->period_type == 3) + av_log(logctx, AV_LOG_DEBUG, " green_metadata_num_pictures: %d\n", gm->num_pictures); + + av_log(logctx, AV_LOG_DEBUG, " SEI GREEN Complexity Metrics: %f %f %f %f\n", + (float)gm->percent_non_zero_macroblocks/255, + (float)gm->percent_intra_coded_macroblocks/255, + (float)gm->percent_six_tap_filtering/255, + (float)gm->percent_alpha_point_deblocking_instance/255); + + } else if (gm->green_metadata_type == 1) { + av_log(logctx, AV_LOG_DEBUG, " xsd_metric_type: %d\n", gm->xsd_metric_type); + + if (gm->xsd_metric_type == 0) + av_log(logctx, AV_LOG_DEBUG, " xsd_metric_value: %f\n", + (float)gm->xsd_metric_value/100); + } +} + +static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size) +{ + AVCodecContext *const avctx = h->avctx; + unsigned context_count = 0; + int nals_needed = 0; ///< number of NALs that need decoding before the next frame thread starts + int idr_cleared=0; + int i, ret = 0; + + h->nal_unit_type= 0; + + h->max_contexts = h->nb_slice_ctx; + if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)) { + h->current_slice = 0; + if (!h->first_field) + h->cur_pic_ptr = NULL; + ff_h264_sei_uninit(&h->sei); + } + + if (h->nal_length_size == 4) { + if (buf_size > 8 && AV_RB32(buf) == 1 && AV_RB32(buf+5) > (unsigned)buf_size) { + h->is_avc = 0; + }else if(buf_size > 3 && AV_RB32(buf) > 1 && AV_RB32(buf) <= (unsigned)buf_size) + h->is_avc = 1; + } + + ret = ff_h2645_packet_split(&h->pkt, buf, buf_size, avctx, h->is_avc, + h->nal_length_size, avctx->codec_id); + if (ret < 0) { + av_log(avctx, AV_LOG_ERROR, + "Error splitting the input into NAL units.\n"); + return ret; + } + + if (avctx->active_thread_type & FF_THREAD_FRAME) + nals_needed = get_last_needed_nal(h); + if (nals_needed < 0) + return nals_needed; + + for (i = 0; i < h->pkt.nb_nals; i++) { + H2645NAL *nal = &h->pkt.nals[i]; + H264SliceContext *sl = &h->slice_ctx[context_count]; + int err; + + if (avctx->skip_frame >= AVDISCARD_NONREF && + nal->ref_idc == 0 && nal->type != NAL_SEI) + continue; + +again: + // FIXME these should stop being context-global variables + h->nal_ref_idc = nal->ref_idc; + h->nal_unit_type = nal->type; + + err = 0; + switch (nal->type) { + case NAL_IDR_SLICE: + if ((nal->data[1] & 0xFC) == 0x98) { + av_log(h->avctx, AV_LOG_ERROR, "Invalid inter IDR frame\n"); + h->next_outputed_poc = INT_MIN; + ret = -1; + goto end; + } + if (nal->type != NAL_IDR_SLICE) { + av_log(h->avctx, AV_LOG_ERROR, + "Invalid mix of idr and non-idr slices\n"); + ret = -1; + goto end; + } + if(!idr_cleared) { + if (h->current_slice && (avctx->active_thread_type & FF_THREAD_SLICE)) { + av_log(h, AV_LOG_ERROR, "invalid mixed IDR / non IDR frames cannot be decoded in slice multithreading mode\n"); + ret = AVERROR_INVALIDDATA; + goto end; + } + idr(h); // FIXME ensure we don't lose some frames if there is reordering + } + idr_cleared = 1; + h->has_recovery_point = 1; + case NAL_SLICE: + sl->gb = nal->gb; + + if ((err = ff_h264_decode_slice_header(h, sl, nal))) + break; + + if (h->sei.recovery_point.recovery_frame_cnt >= 0) { + const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt; + + if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I) + h->valid_recovery_point = 1; + + if ( h->recovery_frame < 0 + || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) { + h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num); + + if (!h->valid_recovery_point) + h->recovery_frame = h->poc.frame_num; + } + } + + h->cur_pic_ptr->f->key_frame |= (nal->type == NAL_IDR_SLICE); + + if (nal->type == NAL_IDR_SLICE || + (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) { + h->recovery_frame = -1; + h->cur_pic_ptr->recovered = 1; + } + // If we have an IDR, all frames after it in decoded order are + // "recovered". + if (nal->type == NAL_IDR_SLICE) + h->frame_recovered |= FRAME_RECOVERED_IDR; +#if 1 + h->cur_pic_ptr->recovered |= h->frame_recovered; +#else + h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR); +#endif + + if (h->current_slice == 1) { + if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)) + decode_postinit(h, i >= nals_needed); + + if (h->avctx->hwaccel && + (ret = h->avctx->hwaccel->start_frame(h->avctx, buf, buf_size)) < 0) + goto end; +#if FF_API_CAP_VDPAU + if (CONFIG_H264_VDPAU_DECODER && + h->avctx->codec->capabilities & AV_CODEC_CAP_HWACCEL_VDPAU) + ff_vdpau_h264_picture_start(h); +#endif + } + + if (sl->redundant_pic_count == 0) { + if (avctx->hwaccel) { + ret = avctx->hwaccel->decode_slice(avctx, + nal->raw_data, + nal->raw_size); + if (ret < 0) + goto end; +#if FF_API_CAP_VDPAU + } else if (CONFIG_H264_VDPAU_DECODER && + h->avctx->codec->capabilities & AV_CODEC_CAP_HWACCEL_VDPAU) { + ff_vdpau_add_data_chunk(h->cur_pic_ptr->f->data[0], + start_code, + sizeof(start_code)); + ff_vdpau_add_data_chunk(h->cur_pic_ptr->f->data[0], + nal->raw_data, + nal->raw_size); +#endif + } else + context_count++; + } + break; + case NAL_DPA: + case NAL_DPB: + case NAL_DPC: + avpriv_request_sample(avctx, "data partitioning"); + break; + case NAL_SEI: + ret = ff_h264_sei_decode(&h->sei, &nal->gb, &h->ps, avctx); + h->has_recovery_point = h->has_recovery_point || h->sei.recovery_point.recovery_frame_cnt != -1; + if (avctx->debug & FF_DEBUG_GREEN_MD) + debug_green_metadata(&h->sei.green_metadata, h->avctx); +#if FF_API_AFD +FF_DISABLE_DEPRECATION_WARNINGS + h->avctx->dtg_active_format = h->sei.afd.active_format_description; +FF_ENABLE_DEPRECATION_WARNINGS +#endif /* FF_API_AFD */ + if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) + goto end; + break; + case NAL_SPS: { + GetBitContext tmp_gb = nal->gb; + if (ff_h264_decode_seq_parameter_set(&tmp_gb, avctx, &h->ps, 0) >= 0) + break; + av_log(h->avctx, AV_LOG_DEBUG, + "SPS decoding failure, trying again with the complete NAL\n"); + init_get_bits8(&tmp_gb, nal->raw_data + 1, nal->raw_size - 1); + if (ff_h264_decode_seq_parameter_set(&tmp_gb, avctx, &h->ps, 0) >= 0) + break; + ff_h264_decode_seq_parameter_set(&nal->gb, avctx, &h->ps, 1); + break; + } + case NAL_PPS: + ret = ff_h264_decode_picture_parameter_set(&nal->gb, avctx, &h->ps, + nal->size_bits); + if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) + goto end; + break; + case NAL_AUD: + case NAL_END_SEQUENCE: + case NAL_END_STREAM: + case NAL_FILLER_DATA: + case NAL_SPS_EXT: + case NAL_AUXILIARY_SLICE: + break; + default: + av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n", + nal->type, nal->size_bits); + } + + if (context_count == h->max_contexts) { + ret = ff_h264_execute_decode_slices(h, context_count); + if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) + goto end; + context_count = 0; + } + + if (err < 0 || err == SLICE_SKIPED) { + if (err < 0) + av_log(h->avctx, AV_LOG_ERROR, "decode_slice_header error\n"); + sl->ref_count[0] = sl->ref_count[1] = sl->list_count = 0; + } else if (err == SLICE_SINGLETHREAD) { + if (context_count > 0) { + ret = ff_h264_execute_decode_slices(h, context_count); + if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) + goto end; + context_count = 0; + } + /* Slice could not be decoded in parallel mode, restart. */ + sl = &h->slice_ctx[0]; + goto again; + } + } + if (context_count) { + ret = ff_h264_execute_decode_slices(h, context_count); + if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) + goto end; + } + + ret = 0; +end: + +#if CONFIG_ERROR_RESILIENCE + /* + * FIXME: Error handling code does not seem to support interlaced + * when slices span multiple rows + * The ff_er_add_slice calls don't work right for bottom + * fields; they cause massive erroneous error concealing + * Error marking covers both fields (top and bottom). + * This causes a mismatched s->error_count + * and a bad error table. Further, the error count goes to + * INT_MAX when called for bottom field, because mb_y is + * past end by one (callers fault) and resync_mb_y != 0 + * causes problems for the first MB line, too. + */ + if (!FIELD_PICTURE(h) && h->current_slice && + h->ps.sps == (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data && + h->enable_er) { + + H264SliceContext *sl = h->slice_ctx; + int use_last_pic = h->last_pic_for_ec.f->buf[0] && !sl->ref_count[0]; + + ff_h264_set_erpic(&sl->er.cur_pic, h->cur_pic_ptr); + + if (use_last_pic) { + ff_h264_set_erpic(&sl->er.last_pic, &h->last_pic_for_ec); + sl->ref_list[0][0].parent = &h->last_pic_for_ec; + memcpy(sl->ref_list[0][0].data, h->last_pic_for_ec.f->data, sizeof(sl->ref_list[0][0].data)); + memcpy(sl->ref_list[0][0].linesize, h->last_pic_for_ec.f->linesize, sizeof(sl->ref_list[0][0].linesize)); + sl->ref_list[0][0].reference = h->last_pic_for_ec.reference; + } else if (sl->ref_count[0]) { + ff_h264_set_erpic(&sl->er.last_pic, sl->ref_list[0][0].parent); + } else + ff_h264_set_erpic(&sl->er.last_pic, NULL); + + if (sl->ref_count[1]) + ff_h264_set_erpic(&sl->er.next_pic, sl->ref_list[1][0].parent); + + sl->er.ref_count = sl->ref_count[0]; + + ff_er_frame_end(&sl->er); + if (use_last_pic) + memset(&sl->ref_list[0][0], 0, sizeof(sl->ref_list[0][0])); + } +#endif /* CONFIG_ERROR_RESILIENCE */ + /* clean up */ + if (h->cur_pic_ptr && !h->droppable) { + ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, + h->picture_structure == PICT_BOTTOM_FIELD); + } + + return (ret < 0) ? ret : buf_size; +} + +/** + * Return the number of bytes consumed for building the current frame. + */ +static int get_consumed_bytes(int pos, int buf_size) +{ + if (pos == 0) + pos = 1; // avoid infinite loops (I doubt that is needed but...) + if (pos + 10 > buf_size) + pos = buf_size; // oops ;) + + return pos; +} + +static int output_frame(H264Context *h, AVFrame *dst, H264Picture *srcp) +{ + AVFrame *src = srcp->f; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(src->format); + int i; + int ret = av_frame_ref(dst, src); + if (ret < 0) + return ret; + + av_dict_set(&dst->metadata, "stereo_mode", ff_h264_sei_stereo_mode(&h->sei.frame_packing), 0); + + h->backup_width = h->avctx->width; + h->backup_height = h->avctx->height; + h->backup_pix_fmt = h->avctx->pix_fmt; + + h->avctx->width = dst->width; + h->avctx->height = dst->height; + h->avctx->pix_fmt = dst->format; + + if (srcp->sei_recovery_frame_cnt == 0) + dst->key_frame = 1; + if (!srcp->crop) + return 0; + + for (i = 0; i < desc->nb_components; i++) { + int hshift = (i > 0) ? desc->log2_chroma_w : 0; + int vshift = (i > 0) ? desc->log2_chroma_h : 0; + int off = ((srcp->crop_left >> hshift) << h->pixel_shift) + + (srcp->crop_top >> vshift) * dst->linesize[i]; + dst->data[i] += off; + } + return 0; +} + +static int is_extra(const uint8_t *buf, int buf_size) +{ + int cnt= buf[5]&0x1f; + const uint8_t *p= buf+6; + while(cnt--){ + int nalsize= AV_RB16(p) + 2; + if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7) + return 0; + p += nalsize; + } + cnt = *(p++); + if(!cnt) + return 0; + while(cnt--){ + int nalsize= AV_RB16(p) + 2; + if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 8) + return 0; + p += nalsize; + } + return 1; +} + +static int h264_decode_frame(AVCodecContext *avctx, void *data, + int *got_frame, AVPacket *avpkt) +{ + const uint8_t *buf = avpkt->data; + int buf_size = avpkt->size; + H264Context *h = avctx->priv_data; + AVFrame *pict = data; + int buf_index = 0; + H264Picture *out; + int i, out_idx; + int ret; + + h->flags = avctx->flags; + h->setup_finished = 0; + + if (h->backup_width != -1) { + avctx->width = h->backup_width; + h->backup_width = -1; + } + if (h->backup_height != -1) { + avctx->height = h->backup_height; + h->backup_height = -1; + } + if (h->backup_pix_fmt != AV_PIX_FMT_NONE) { + avctx->pix_fmt = h->backup_pix_fmt; + h->backup_pix_fmt = AV_PIX_FMT_NONE; + } + + ff_h264_unref_picture(h, &h->last_pic_for_ec); + + /* end of stream, output what is still in the buffers */ + if (buf_size == 0) { + out: + + h->cur_pic_ptr = NULL; + h->first_field = 0; + + // FIXME factorize this with the output code below + out = h->delayed_pic[0]; + out_idx = 0; + for (i = 1; + h->delayed_pic[i] && + !h->delayed_pic[i]->f->key_frame && + !h->delayed_pic[i]->mmco_reset; + i++) + if (h->delayed_pic[i]->poc < out->poc) { + out = h->delayed_pic[i]; + out_idx = i; + } + + for (i = out_idx; h->delayed_pic[i]; i++) + h->delayed_pic[i] = h->delayed_pic[i + 1]; + + if (out) { + out->reference &= ~DELAYED_PIC_REF; + ret = output_frame(h, pict, out); + if (ret < 0) + return ret; + *got_frame = 1; + } + + return buf_index; + } + if (h->is_avc && av_packet_get_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA, NULL)) { + int side_size; + uint8_t *side = av_packet_get_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size); + if (is_extra(side, side_size)) + ff_h264_decode_extradata(side, side_size, + &h->ps, &h->is_avc, &h->nal_length_size, + avctx->err_recognition, avctx); + } + if(h->is_avc && buf_size >= 9 && buf[0]==1 && buf[2]==0 && (buf[4]&0xFC)==0xFC && (buf[5]&0x1F) && buf[8]==0x67){ + if (is_extra(buf, buf_size)) + return ff_h264_decode_extradata(buf, buf_size, + &h->ps, &h->is_avc, &h->nal_length_size, + avctx->err_recognition, avctx); + } + + buf_index = decode_nal_units(h, buf, buf_size); + if (buf_index < 0) + return AVERROR_INVALIDDATA; + + if (!h->cur_pic_ptr && h->nal_unit_type == NAL_END_SEQUENCE) { + av_assert0(buf_index <= buf_size); + goto out; + } + + if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) && !h->cur_pic_ptr) { + if (avctx->skip_frame >= AVDISCARD_NONREF || + buf_size >= 4 && !memcmp("Q264", buf, 4)) + return buf_size; + av_log(avctx, AV_LOG_ERROR, "no frame!\n"); + return AVERROR_INVALIDDATA; + } + + if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) || + (h->mb_y >= h->mb_height && h->mb_height)) { + if (avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) + decode_postinit(h, 1); + + if ((ret = ff_h264_field_end(h, &h->slice_ctx[0], 0)) < 0) + return ret; + + /* Wait for second field. */ + *got_frame = 0; + if (h->next_output_pic && ((avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) || + (avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL) || + h->next_output_pic->recovered)) { + if (!h->next_output_pic->recovered) + h->next_output_pic->f->flags |= AV_FRAME_FLAG_CORRUPT; + + if (!h->avctx->hwaccel && + (h->next_output_pic->field_poc[0] == INT_MAX || + h->next_output_pic->field_poc[1] == INT_MAX) + ) { + int p; + AVFrame *f = h->next_output_pic->f; + int field = h->next_output_pic->field_poc[0] == INT_MAX; + uint8_t *dst_data[4]; + int linesizes[4]; + const uint8_t *src_data[4]; + + av_log(h->avctx, AV_LOG_DEBUG, "Duplicating field %d to fill missing\n", field); + + for (p = 0; p<4; p++) { + dst_data[p] = f->data[p] + (field^1)*f->linesize[p]; + src_data[p] = f->data[p] + field *f->linesize[p]; + linesizes[p] = 2*f->linesize[p]; + } + + av_image_copy(dst_data, linesizes, src_data, linesizes, + f->format, f->width, f->height>>1); + } + + ret = output_frame(h, pict, h->next_output_pic); + if (ret < 0) + return ret; + *got_frame = 1; + if (CONFIG_MPEGVIDEO) { + ff_print_debug_info2(h->avctx, pict, NULL, + h->next_output_pic->mb_type, + h->next_output_pic->qscale_table, + h->next_output_pic->motion_val, + NULL, + h->mb_width, h->mb_height, h->mb_stride, 1); + } + } + } + + av_assert0(pict->buf[0] || !*got_frame); + + ff_h264_unref_picture(h, &h->last_pic_for_ec); + + return get_consumed_bytes(buf_index, buf_size); +} + +#define OFFSET(x) offsetof(H264Context, x) +#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM +static const AVOption h264_options[] = { + {"is_avc", "is avc", offsetof(H264Context, is_avc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0}, + {"nal_length_size", "nal_length_size", offsetof(H264Context, nal_length_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, 0}, + { "enable_er", "Enable error resilience on damaged frames (unsafe)", OFFSET(enable_er), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD }, + { NULL }, +}; + +static const AVClass h264_class = { + .class_name = "H264 Decoder", + .item_name = av_default_item_name, + .option = h264_options, + .version = LIBAVUTIL_VERSION_INT, +}; + +AVCodec ff_h264_decoder = { + .name = "h264", + .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_H264, + .priv_data_size = sizeof(H264Context), + .init = ff_h264_decode_init, + .close = h264_decode_end, + .decode = h264_decode_frame, + .capabilities = /*AV_CODEC_CAP_DRAW_HORIZ_BAND |*/ AV_CODEC_CAP_DR1 | + AV_CODEC_CAP_DELAY | AV_CODEC_CAP_SLICE_THREADS | + AV_CODEC_CAP_FRAME_THREADS, + .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, + .flush = flush_dpb, + .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), + .update_thread_context = ONLY_IF_THREADS_ENABLED(ff_h264_update_thread_context), + .profiles = NULL_IF_CONFIG_SMALL(ff_h264_profiles), + .priv_class = &h264_class, +}; + +#if CONFIG_H264_VDPAU_DECODER && FF_API_VDPAU +static const AVClass h264_vdpau_class = { + .class_name = "H264 VDPAU Decoder", + .item_name = av_default_item_name, + .option = h264_options, + .version = LIBAVUTIL_VERSION_INT, +}; + +AVCodec ff_h264_vdpau_decoder = { + .name = "h264_vdpau", + .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_H264, + .priv_data_size = sizeof(H264Context), + .init = ff_h264_decode_init, + .close = h264_decode_end, + .decode = h264_decode_frame, + .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HWACCEL_VDPAU, + .flush = flush_dpb, + .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_VDPAU_H264, + AV_PIX_FMT_NONE}, + .profiles = NULL_IF_CONFIG_SMALL(ff_h264_profiles), + .priv_class = &h264_vdpau_class, +}; +#endif |