Split (picture|seq) parameter set decoding out of h264.c.

no speedloss meassured, also its really not touching anything that is speed relevant.

Originally committed as revision 21169 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 1 insertions, 432 deletions

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 163562dd79..36ebb805cb 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -2037,7 +2037,7 @@ static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){
                     for(i=16; i<16+8; i++){
                         if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
                             uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i];
-                            svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
+                            svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, ff_h264_chroma_qp[s->qscale + 12] - 12, 2);
                         }
                     }
                 }
@@ -5594,437 +5594,6 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg){
     return -1; //not reached
 }
 
-static inline int decode_hrd_parameters(H264Context *h, SPS *sps){
-    MpegEncContext * const s = &h->s;
-    int cpb_count, i;
-    cpb_count = get_ue_golomb_31(&s->gb) + 1;
-
-    if(cpb_count > 32U){
-        av_log(h->s.avctx, AV_LOG_ERROR, "cpb_count %d invalid\n", cpb_count);
-        return -1;
-    }
-
-    get_bits(&s->gb, 4); /* bit_rate_scale */
-    get_bits(&s->gb, 4); /* cpb_size_scale */
-    for(i=0; i<cpb_count; i++){
-        get_ue_golomb(&s->gb); /* bit_rate_value_minus1 */
-        get_ue_golomb(&s->gb); /* cpb_size_value_minus1 */
-        get_bits1(&s->gb);     /* cbr_flag */
-    }
-    sps->initial_cpb_removal_delay_length = get_bits(&s->gb, 5) + 1;
-    sps->cpb_removal_delay_length = get_bits(&s->gb, 5) + 1;
-    sps->dpb_output_delay_length = get_bits(&s->gb, 5) + 1;
-    sps->time_offset_length = get_bits(&s->gb, 5);
-    sps->cpb_cnt = cpb_count;
-    return 0;
-}
-
-static inline int decode_vui_parameters(H264Context *h, SPS *sps){
-    MpegEncContext * const s = &h->s;
-    int aspect_ratio_info_present_flag;
-    unsigned int aspect_ratio_idc;
-
-    aspect_ratio_info_present_flag= get_bits1(&s->gb);
-
-    if( aspect_ratio_info_present_flag ) {
-        aspect_ratio_idc= get_bits(&s->gb, 8);
-        if( aspect_ratio_idc == EXTENDED_SAR ) {
-            sps->sar.num= get_bits(&s->gb, 16);
-            sps->sar.den= get_bits(&s->gb, 16);
-        }else if(aspect_ratio_idc < FF_ARRAY_ELEMS(pixel_aspect)){
-            sps->sar=  pixel_aspect[aspect_ratio_idc];
-        }else{
-            av_log(h->s.avctx, AV_LOG_ERROR, "illegal aspect ratio\n");
-            return -1;
-        }
-    }else{
-        sps->sar.num=
-        sps->sar.den= 0;
-    }
-//            s->avctx->aspect_ratio= sar_width*s->width / (float)(s->height*sar_height);
-
-    if(get_bits1(&s->gb)){      /* overscan_info_present_flag */
-        get_bits1(&s->gb);      /* overscan_appropriate_flag */
-    }
-
-    sps->video_signal_type_present_flag = get_bits1(&s->gb);
-    if(sps->video_signal_type_present_flag){
-        get_bits(&s->gb, 3);    /* video_format */
-        sps->full_range = get_bits1(&s->gb); /* video_full_range_flag */
-
-        sps->colour_description_present_flag = get_bits1(&s->gb);
-        if(sps->colour_description_present_flag){
-            sps->color_primaries = get_bits(&s->gb, 8); /* colour_primaries */
-            sps->color_trc       = get_bits(&s->gb, 8); /* transfer_characteristics */
-            sps->colorspace      = get_bits(&s->gb, 8); /* matrix_coefficients */
-            if (sps->color_primaries >= AVCOL_PRI_NB)
-                sps->color_primaries  = AVCOL_PRI_UNSPECIFIED;
-            if (sps->color_trc >= AVCOL_TRC_NB)
-                sps->color_trc  = AVCOL_TRC_UNSPECIFIED;
-            if (sps->colorspace >= AVCOL_SPC_NB)
-                sps->colorspace  = AVCOL_SPC_UNSPECIFIED;
-        }
-    }
-
-    if(get_bits1(&s->gb)){      /* chroma_location_info_present_flag */
-        s->avctx->chroma_sample_location = get_ue_golomb(&s->gb)+1;  /* chroma_sample_location_type_top_field */
-        get_ue_golomb(&s->gb);  /* chroma_sample_location_type_bottom_field */
-    }
-
-    sps->timing_info_present_flag = get_bits1(&s->gb);
-    if(sps->timing_info_present_flag){
-        sps->num_units_in_tick = get_bits_long(&s->gb, 32);
-        sps->time_scale = get_bits_long(&s->gb, 32);
-        if(sps->num_units_in_tick-1 > 0x7FFFFFFEU || sps->time_scale-1 > 0x7FFFFFFEU){
-            av_log(h->s.avctx, AV_LOG_ERROR, "time_scale/num_units_in_tick invalid or unsupported (%d/%d)\n", sps->time_scale, sps->num_units_in_tick);
-            return -1;
-        }
-        sps->fixed_frame_rate_flag = get_bits1(&s->gb);
-    }
-
-    sps->nal_hrd_parameters_present_flag = get_bits1(&s->gb);
-    if(sps->nal_hrd_parameters_present_flag)
-        if(decode_hrd_parameters(h, sps) < 0)
-            return -1;
-    sps->vcl_hrd_parameters_present_flag = get_bits1(&s->gb);
-    if(sps->vcl_hrd_parameters_present_flag)
-        if(decode_hrd_parameters(h, sps) < 0)
-            return -1;
-    if(sps->nal_hrd_parameters_present_flag || sps->vcl_hrd_parameters_present_flag)
-        get_bits1(&s->gb);     /* low_delay_hrd_flag */
-    sps->pic_struct_present_flag = get_bits1(&s->gb);
-
-    sps->bitstream_restriction_flag = get_bits1(&s->gb);
-    if(sps->bitstream_restriction_flag){
-        get_bits1(&s->gb);     /* motion_vectors_over_pic_boundaries_flag */
-        get_ue_golomb(&s->gb); /* max_bytes_per_pic_denom */
-        get_ue_golomb(&s->gb); /* max_bits_per_mb_denom */
-        get_ue_golomb(&s->gb); /* log2_max_mv_length_horizontal */
-        get_ue_golomb(&s->gb); /* log2_max_mv_length_vertical */
-        sps->num_reorder_frames= get_ue_golomb(&s->gb);
-        get_ue_golomb(&s->gb); /*max_dec_frame_buffering*/
-
-        if(sps->num_reorder_frames > 16U /*max_dec_frame_buffering || max_dec_frame_buffering > 16*/){
-            av_log(h->s.avctx, AV_LOG_ERROR, "illegal num_reorder_frames %d\n", sps->num_reorder_frames);
-            return -1;
-        }
-    }
-
-    return 0;
-}
-
-static void decode_scaling_list(H264Context *h, uint8_t *factors, int size,
-                                const uint8_t *jvt_list, const uint8_t *fallback_list){
-    MpegEncContext * const s = &h->s;
-    int i, last = 8, next = 8;
-    const uint8_t *scan = size == 16 ? zigzag_scan : ff_zigzag_direct;
-    if(!get_bits1(&s->gb)) /* matrix not written, we use the predicted one */
-        memcpy(factors, fallback_list, size*sizeof(uint8_t));
-    else
-    for(i=0;i<size;i++){
-        if(next)
-            next = (last + get_se_golomb(&s->gb)) & 0xff;
-        if(!i && !next){ /* matrix not written, we use the preset one */
-            memcpy(factors, jvt_list, size*sizeof(uint8_t));
-            break;
-        }
-        last = factors[scan[i]] = next ? next : last;
-    }
-}
-
-static void decode_scaling_matrices(H264Context *h, SPS *sps, PPS *pps, int is_sps,
-                                   uint8_t (*scaling_matrix4)[16], uint8_t (*scaling_matrix8)[64]){
-    MpegEncContext * const s = &h->s;
-    int fallback_sps = !is_sps && sps->scaling_matrix_present;
-    const uint8_t *fallback[4] = {
-        fallback_sps ? sps->scaling_matrix4[0] : default_scaling4[0],
-        fallback_sps ? sps->scaling_matrix4[3] : default_scaling4[1],
-        fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0],
-        fallback_sps ? sps->scaling_matrix8[1] : default_scaling8[1]
-    };
-    if(get_bits1(&s->gb)){
-        sps->scaling_matrix_present |= is_sps;
-        decode_scaling_list(h,scaling_matrix4[0],16,default_scaling4[0],fallback[0]); // Intra, Y
-        decode_scaling_list(h,scaling_matrix4[1],16,default_scaling4[0],scaling_matrix4[0]); // Intra, Cr
-        decode_scaling_list(h,scaling_matrix4[2],16,default_scaling4[0],scaling_matrix4[1]); // Intra, Cb
-        decode_scaling_list(h,scaling_matrix4[3],16,default_scaling4[1],fallback[1]); // Inter, Y
-        decode_scaling_list(h,scaling_matrix4[4],16,default_scaling4[1],scaling_matrix4[3]); // Inter, Cr
-        decode_scaling_list(h,scaling_matrix4[5],16,default_scaling4[1],scaling_matrix4[4]); // Inter, Cb
-        if(is_sps || pps->transform_8x8_mode){
-            decode_scaling_list(h,scaling_matrix8[0],64,default_scaling8[0],fallback[2]);  // Intra, Y
-            decode_scaling_list(h,scaling_matrix8[1],64,default_scaling8[1],fallback[3]);  // Inter, Y
-        }
-    }
-}
-
-int ff_h264_decode_seq_parameter_set(H264Context *h){
-    MpegEncContext * const s = &h->s;
-    int profile_idc, level_idc;
-    unsigned int sps_id;
-    int i;
-    SPS *sps;
-
-    profile_idc= get_bits(&s->gb, 8);
-    get_bits1(&s->gb);   //constraint_set0_flag
-    get_bits1(&s->gb);   //constraint_set1_flag
-    get_bits1(&s->gb);   //constraint_set2_flag
-    get_bits1(&s->gb);   //constraint_set3_flag
-    get_bits(&s->gb, 4); // reserved
-    level_idc= get_bits(&s->gb, 8);
-    sps_id= get_ue_golomb_31(&s->gb);
-
-    if(sps_id >= MAX_SPS_COUNT) {
-        av_log(h->s.avctx, AV_LOG_ERROR, "sps_id (%d) out of range\n", sps_id);
-        return -1;
-    }
-    sps= av_mallocz(sizeof(SPS));
-    if(sps == NULL)
-        return -1;
-
-    sps->profile_idc= profile_idc;
-    sps->level_idc= level_idc;
-
-    memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4));
-    memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8));
-    sps->scaling_matrix_present = 0;
-
-    if(sps->profile_idc >= 100){ //high profile
-        sps->chroma_format_idc= get_ue_golomb_31(&s->gb);
-        if(sps->chroma_format_idc == 3)
-            sps->residual_color_transform_flag = get_bits1(&s->gb);
-        sps->bit_depth_luma   = get_ue_golomb(&s->gb) + 8;
-        sps->bit_depth_chroma = get_ue_golomb(&s->gb) + 8;
-        sps->transform_bypass = get_bits1(&s->gb);
-        decode_scaling_matrices(h, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8);
-    }else{
-        sps->chroma_format_idc= 1;
-        sps->bit_depth_luma   = 8;
-        sps->bit_depth_chroma = 8;
-    }
-
-    sps->log2_max_frame_num= get_ue_golomb(&s->gb) + 4;
-    sps->poc_type= get_ue_golomb_31(&s->gb);
-
-    if(sps->poc_type == 0){ //FIXME #define
-        sps->log2_max_poc_lsb= get_ue_golomb(&s->gb) + 4;
-    } else if(sps->poc_type == 1){//FIXME #define
-        sps->delta_pic_order_always_zero_flag= get_bits1(&s->gb);
-        sps->offset_for_non_ref_pic= get_se_golomb(&s->gb);
-        sps->offset_for_top_to_bottom_field= get_se_golomb(&s->gb);
-        sps->poc_cycle_length                = get_ue_golomb(&s->gb);
-
-        if((unsigned)sps->poc_cycle_length >= FF_ARRAY_ELEMS(sps->offset_for_ref_frame)){
-            av_log(h->s.avctx, AV_LOG_ERROR, "poc_cycle_length overflow %u\n", sps->poc_cycle_length);
-            goto fail;
-        }
-
-        for(i=0; i<sps->poc_cycle_length; i++)
-            sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb);
-    }else if(sps->poc_type != 2){
-        av_log(h->s.avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
-        goto fail;
-    }
-
-    sps->ref_frame_count= get_ue_golomb_31(&s->gb);
-    if(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count >= 32U){
-        av_log(h->s.avctx, AV_LOG_ERROR, "too many reference frames\n");
-        goto fail;
-    }
-    sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb);
-    sps->mb_width = get_ue_golomb(&s->gb) + 1;
-    sps->mb_height= get_ue_golomb(&s->gb) + 1;
-    if((unsigned)sps->mb_width >= INT_MAX/16 || (unsigned)sps->mb_height >= INT_MAX/16 ||
-       avcodec_check_dimensions(NULL, 16*sps->mb_width, 16*sps->mb_height)){
-        av_log(h->s.avctx, AV_LOG_ERROR, "mb_width/height overflow\n");
-        goto fail;
-    }
-
-    sps->frame_mbs_only_flag= get_bits1(&s->gb);
-    if(!sps->frame_mbs_only_flag)
-        sps->mb_aff= get_bits1(&s->gb);
-    else
-        sps->mb_aff= 0;
-
-    sps->direct_8x8_inference_flag= get_bits1(&s->gb);
-
-#ifndef ALLOW_INTERLACE
-    if(sps->mb_aff)
-        av_log(h->s.avctx, AV_LOG_ERROR, "MBAFF support not included; enable it at compile-time.\n");
-#endif
-    sps->crop= get_bits1(&s->gb);
-    if(sps->crop){
-        sps->crop_left  = get_ue_golomb(&s->gb);
-        sps->crop_right = get_ue_golomb(&s->gb);
-        sps->crop_top   = get_ue_golomb(&s->gb);
-        sps->crop_bottom= get_ue_golomb(&s->gb);
-        if(sps->crop_left || sps->crop_top){
-            av_log(h->s.avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ...\n");
-        }
-        if(sps->crop_right >= 8 || sps->crop_bottom >= (8>> !sps->frame_mbs_only_flag)){
-            av_log(h->s.avctx, AV_LOG_ERROR, "brainfart cropping not supported, this could look slightly wrong ...\n");
-        }
-    }else{
-        sps->crop_left  =
-        sps->crop_right =
-        sps->crop_top   =
-        sps->crop_bottom= 0;
-    }
-
-    sps->vui_parameters_present_flag= get_bits1(&s->gb);
-    if( sps->vui_parameters_present_flag )
-        if (decode_vui_parameters(h, sps) < 0)
-            goto fail;
-
-    if(s->avctx->debug&FF_DEBUG_PICT_INFO){
-        av_log(h->s.avctx, AV_LOG_DEBUG, "sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s %s %d/%d\n",
-               sps_id, sps->profile_idc, sps->level_idc,
-               sps->poc_type,
-               sps->ref_frame_count,
-               sps->mb_width, sps->mb_height,
-               sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"),
-               sps->direct_8x8_inference_flag ? "8B8" : "",
-               sps->crop_left, sps->crop_right,
-               sps->crop_top, sps->crop_bottom,
-               sps->vui_parameters_present_flag ? "VUI" : "",
-               ((const char*[]){"Gray","420","422","444"})[sps->chroma_format_idc],
-               sps->timing_info_present_flag ? sps->num_units_in_tick : 0,
-               sps->timing_info_present_flag ? sps->time_scale : 0
-               );
-    }
-
-    av_free(h->sps_buffers[sps_id]);
-    h->sps_buffers[sps_id]= sps;
-    h->sps = *sps;
-    return 0;
-fail:
-    av_free(sps);
-    return -1;
-}
-
-static void
-build_qp_table(PPS *pps, int t, int index)
-{
-    int i;
-    for(i = 0; i < 52; i++)
-        pps->chroma_qp_table[t][i] = chroma_qp[av_clip(i + index, 0, 51)];
-}
-
-int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length){
-    MpegEncContext * const s = &h->s;
-    unsigned int pps_id= get_ue_golomb(&s->gb);
-    PPS *pps;
-
-    if(pps_id >= MAX_PPS_COUNT) {
-        av_log(h->s.avctx, AV_LOG_ERROR, "pps_id (%d) out of range\n", pps_id);
-        return -1;
-    }
-
-    pps= av_mallocz(sizeof(PPS));
-    if(pps == NULL)
-        return -1;
-    pps->sps_id= get_ue_golomb_31(&s->gb);
-    if((unsigned)pps->sps_id>=MAX_SPS_COUNT || h->sps_buffers[pps->sps_id] == NULL){
-        av_log(h->s.avctx, AV_LOG_ERROR, "sps_id out of range\n");
-        goto fail;
-    }
-
-    pps->cabac= get_bits1(&s->gb);
-    pps->pic_order_present= get_bits1(&s->gb);
-    pps->slice_group_count= get_ue_golomb(&s->gb) + 1;
-    if(pps->slice_group_count > 1 ){
-        pps->mb_slice_group_map_type= get_ue_golomb(&s->gb);
-        av_log(h->s.avctx, AV_LOG_ERROR, "FMO not supported\n");
-        switch(pps->mb_slice_group_map_type){
-        case 0:
-#if 0
-|   for( i = 0; i <= num_slice_groups_minus1; i++ ) |   |        |
-|    run_length[ i ]                                |1  |ue(v)   |
-#endif
-            break;
-        case 2:
-#if 0
-|   for( i = 0; i < num_slice_groups_minus1; i++ )  |   |        |
-|{                                                  |   |        |
-|    top_left_mb[ i ]                               |1  |ue(v)   |
-|    bottom_right_mb[ i ]                           |1  |ue(v)   |
-|   }                                               |   |        |
-#endif
-            break;
-        case 3:
-        case 4:
-        case 5:
-#if 0
-|   slice_group_change_direction_flag               |1  |u(1)    |
-|   slice_group_change_rate_minus1                  |1  |ue(v)   |
-#endif
-            break;
-        case 6:
-#if 0
-|   slice_group_id_cnt_minus1                       |1  |ue(v)   |
-|   for( i = 0; i <= slice_group_id_cnt_minus1; i++ |   |        |
-|)                                                  |   |        |
-|    slice_group_id[ i ]                            |1  |u(v)    |
-#endif
-            break;
-        }
-    }
-    pps->ref_count[0]= get_ue_golomb(&s->gb) + 1;
-    pps->ref_count[1]= get_ue_golomb(&s->gb) + 1;
-    if(pps->ref_count[0]-1 > 32-1 || pps->ref_count[1]-1 > 32-1){
-        av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow (pps)\n");
-        goto fail;
-    }
-
-    pps->weighted_pred= get_bits1(&s->gb);
-    pps->weighted_bipred_idc= get_bits(&s->gb, 2);
-    pps->init_qp= get_se_golomb(&s->gb) + 26;
-    pps->init_qs= get_se_golomb(&s->gb) + 26;
-    pps->chroma_qp_index_offset[0]= get_se_golomb(&s->gb);
-    pps->deblocking_filter_parameters_present= get_bits1(&s->gb);
-    pps->constrained_intra_pred= get_bits1(&s->gb);
-    pps->redundant_pic_cnt_present = get_bits1(&s->gb);
-
-    pps->transform_8x8_mode= 0;
-    h->dequant_coeff_pps= -1; //contents of sps/pps can change even if id doesn't, so reinit
-    memcpy(pps->scaling_matrix4, h->sps_buffers[pps->sps_id]->scaling_matrix4, sizeof(pps->scaling_matrix4));
-    memcpy(pps->scaling_matrix8, h->sps_buffers[pps->sps_id]->scaling_matrix8, sizeof(pps->scaling_matrix8));
-
-    if(get_bits_count(&s->gb) < bit_length){
-        pps->transform_8x8_mode= get_bits1(&s->gb);
-        decode_scaling_matrices(h, h->sps_buffers[pps->sps_id], pps, 0, pps->scaling_matrix4, pps->scaling_matrix8);
-        pps->chroma_qp_index_offset[1]= get_se_golomb(&s->gb); //second_chroma_qp_index_offset
-    } else {
-        pps->chroma_qp_index_offset[1]= pps->chroma_qp_index_offset[0];
-    }
-
-    build_qp_table(pps, 0, pps->chroma_qp_index_offset[0]);
-    build_qp_table(pps, 1, pps->chroma_qp_index_offset[1]);
-    if(pps->chroma_qp_index_offset[0] != pps->chroma_qp_index_offset[1])
-        h->pps.chroma_qp_diff= 1;
-
-    if(s->avctx->debug&FF_DEBUG_PICT_INFO){
-        av_log(h->s.avctx, AV_LOG_DEBUG, "pps:%u sps:%u %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d/%d %s %s %s %s\n",
-               pps_id, pps->sps_id,
-               pps->cabac ? "CABAC" : "CAVLC",
-               pps->slice_group_count,
-               pps->ref_count[0], pps->ref_count[1],
-               pps->weighted_pred ? "weighted" : "",
-               pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset[0], pps->chroma_qp_index_offset[1],
-               pps->deblocking_filter_parameters_present ? "LPAR" : "",
-               pps->constrained_intra_pred ? "CONSTR" : "",
-               pps->redundant_pic_cnt_present ? "REDU" : "",
-               pps->transform_8x8_mode ? "8x8DCT" : ""
-               );
-    }
-
-    av_free(h->pps_buffers[pps_id]);
-    h->pps_buffers[pps_id]= pps;
-    return 0;
-fail:
-    av_free(pps);
-    return -1;
-}
-
 /**
  * Call decode_slice() for each context.
  *