making act segmenter

1 files changed, 688 insertions, 0 deletions

diff --git a/ffmpeg/libavcodec/h264_ps.c b/ffmpeg/libavcodec/h264_ps.c
new file mode 100644
index 0000000..8638ce2
--- /dev/null
+++ b/ffmpeg/libavcodec/h264_ps.c
@@ -0,0 +1,688 @@
+/*
+ * H.26L/H.264/AVC/JVT/14496-10/... parameter set decoding
+ * 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 / MPEG4 part10 parameter set decoding.
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "libavutil/imgutils.h"
+#include "internal.h"
+#include "avcodec.h"
+#include "h264.h"
+#include "h264data.h" //FIXME FIXME FIXME (just for zigzag_scan)
+#include "golomb.h"
+
+
+//#undef NDEBUG
+#include <assert.h>
+
+#define MAX_LOG2_MAX_FRAME_NUM    (12 + 4)
+#define MIN_LOG2_MAX_FRAME_NUM    4
+
+static const AVRational pixel_aspect[17]={
+ {0, 1},
+ {1, 1},
+ {12, 11},
+ {10, 11},
+ {16, 11},
+ {40, 33},
+ {24, 11},
+ {20, 11},
+ {32, 11},
+ {80, 33},
+ {18, 11},
+ {15, 11},
+ {64, 33},
+ {160,99},
+ {4, 3},
+ {3, 2},
+ {2, 1},
+};
+
+#define QP(qP,depth) ( (qP)+6*((depth)-8) )
+
+#define CHROMA_QP_TABLE_END(d) \
+     QP(0,d),  QP(1,d),  QP(2,d),  QP(3,d),  QP(4,d),  QP(5,d),\
+     QP(6,d),  QP(7,d),  QP(8,d),  QP(9,d), QP(10,d), QP(11,d),\
+    QP(12,d), QP(13,d), QP(14,d), QP(15,d), QP(16,d), QP(17,d),\
+    QP(18,d), QP(19,d), QP(20,d), QP(21,d), QP(22,d), QP(23,d),\
+    QP(24,d), QP(25,d), QP(26,d), QP(27,d), QP(28,d), QP(29,d),\
+    QP(29,d), QP(30,d), QP(31,d), QP(32,d), QP(32,d), QP(33,d),\
+    QP(34,d), QP(34,d), QP(35,d), QP(35,d), QP(36,d), QP(36,d),\
+    QP(37,d), QP(37,d), QP(37,d), QP(38,d), QP(38,d), QP(38,d),\
+    QP(39,d), QP(39,d), QP(39,d), QP(39,d)
+
+const uint8_t ff_h264_chroma_qp[7][QP_MAX_NUM+1] = {
+    {
+        CHROMA_QP_TABLE_END(8)
+    },
+    {
+        0, 1, 2, 3, 4, 5,
+        CHROMA_QP_TABLE_END(9)
+    },
+    {
+        0, 1, 2, 3,  4,  5,
+        6, 7, 8, 9, 10, 11,
+        CHROMA_QP_TABLE_END(10)
+    },
+    {
+        0,  1, 2, 3,  4,  5,
+        6,  7, 8, 9, 10, 11,
+        12,13,14,15, 16, 17,
+        CHROMA_QP_TABLE_END(11)
+    },
+    {
+        0,  1, 2, 3,  4,  5,
+        6,  7, 8, 9, 10, 11,
+        12,13,14,15, 16, 17,
+        18,19,20,21, 22, 23,
+        CHROMA_QP_TABLE_END(12)
+    },
+    {
+        0,  1, 2, 3,  4,  5,
+        6,  7, 8, 9, 10, 11,
+        12,13,14,15, 16, 17,
+        18,19,20,21, 22, 23,
+        24,25,26,27, 28, 29,
+        CHROMA_QP_TABLE_END(13)
+    },
+    {
+        0,  1, 2, 3,  4,  5,
+        6,  7, 8, 9, 10, 11,
+        12,13,14,15, 16, 17,
+        18,19,20,21, 22, 23,
+        24,25,26,27, 28, 29,
+        30,31,32,33, 34, 35,
+        CHROMA_QP_TABLE_END(14)
+    },
+};
+
+static const uint8_t default_scaling4[2][16]={
+{   6,13,20,28,
+   13,20,28,32,
+   20,28,32,37,
+   28,32,37,42
+},{
+   10,14,20,24,
+   14,20,24,27,
+   20,24,27,30,
+   24,27,30,34
+}};
+
+static const uint8_t default_scaling8[2][64]={
+{   6,10,13,16,18,23,25,27,
+   10,11,16,18,23,25,27,29,
+   13,16,18,23,25,27,29,31,
+   16,18,23,25,27,29,31,33,
+   18,23,25,27,29,31,33,36,
+   23,25,27,29,31,33,36,38,
+   25,27,29,31,33,36,38,40,
+   27,29,31,33,36,38,40,42
+},{
+    9,13,15,17,19,21,22,24,
+   13,13,17,19,21,22,24,25,
+   15,17,19,21,22,24,25,27,
+   17,19,21,22,24,25,27,28,
+   19,21,22,24,25,27,28,30,
+   21,22,24,25,27,28,30,32,
+   22,24,25,27,28,30,32,33,
+   24,25,27,28,30,32,33,35
+}};
+
+static inline int decode_hrd_parameters(H264Context *h, SPS *sps){
+    int cpb_count, i;
+    cpb_count = get_ue_golomb_31(&h->gb) + 1;
+
+    if(cpb_count > 32U){
+        av_log(h->avctx, AV_LOG_ERROR, "cpb_count %d invalid\n", cpb_count);
+        return -1;
+    }
+
+    get_bits(&h->gb, 4); /* bit_rate_scale */
+    get_bits(&h->gb, 4); /* cpb_size_scale */
+    for(i=0; i<cpb_count; i++){
+        get_ue_golomb_long(&h->gb); /* bit_rate_value_minus1 */
+        get_ue_golomb_long(&h->gb); /* cpb_size_value_minus1 */
+        get_bits1(&h->gb);     /* cbr_flag */
+    }
+    sps->initial_cpb_removal_delay_length = get_bits(&h->gb, 5) + 1;
+    sps->cpb_removal_delay_length = get_bits(&h->gb, 5) + 1;
+    sps->dpb_output_delay_length = get_bits(&h->gb, 5) + 1;
+    sps->time_offset_length = get_bits(&h->gb, 5);
+    sps->cpb_cnt = cpb_count;
+    return 0;
+}
+
+static inline int decode_vui_parameters(H264Context *h, SPS *sps){
+    int aspect_ratio_info_present_flag;
+    unsigned int aspect_ratio_idc;
+
+    aspect_ratio_info_present_flag= get_bits1(&h->gb);
+
+    if( aspect_ratio_info_present_flag ) {
+        aspect_ratio_idc= get_bits(&h->gb, 8);
+        if( aspect_ratio_idc == EXTENDED_SAR ) {
+            sps->sar.num= get_bits(&h->gb, 16);
+            sps->sar.den= get_bits(&h->gb, 16);
+        }else if(aspect_ratio_idc < FF_ARRAY_ELEMS(pixel_aspect)){
+            sps->sar=  pixel_aspect[aspect_ratio_idc];
+        }else{
+            av_log(h->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(&h->gb)){      /* overscan_info_present_flag */
+        get_bits1(&h->gb);      /* overscan_appropriate_flag */
+    }
+
+    sps->video_signal_type_present_flag = get_bits1(&h->gb);
+    if(sps->video_signal_type_present_flag){
+        get_bits(&h->gb, 3);    /* video_format */
+        sps->full_range = get_bits1(&h->gb); /* video_full_range_flag */
+
+        sps->colour_description_present_flag = get_bits1(&h->gb);
+        if(sps->colour_description_present_flag){
+            sps->color_primaries = get_bits(&h->gb, 8); /* colour_primaries */
+            sps->color_trc       = get_bits(&h->gb, 8); /* transfer_characteristics */
+            sps->colorspace      = get_bits(&h->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(&h->gb)){      /* chroma_location_info_present_flag */
+        h->avctx->chroma_sample_location = get_ue_golomb(&h->gb)+1;  /* chroma_sample_location_type_top_field */
+        get_ue_golomb(&h->gb);  /* chroma_sample_location_type_bottom_field */
+    }
+
+    sps->timing_info_present_flag = get_bits1(&h->gb);
+    if(sps->timing_info_present_flag){
+        sps->num_units_in_tick = get_bits_long(&h->gb, 32);
+        sps->time_scale = get_bits_long(&h->gb, 32);
+        if(!sps->num_units_in_tick || !sps->time_scale){
+            av_log(h->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(&h->gb);
+    }
+
+    sps->nal_hrd_parameters_present_flag = get_bits1(&h->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(&h->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(&h->gb);     /* low_delay_hrd_flag */
+    sps->pic_struct_present_flag = get_bits1(&h->gb);
+    if(!get_bits_left(&h->gb))
+        return 0;
+    sps->bitstream_restriction_flag = get_bits1(&h->gb);
+    if(sps->bitstream_restriction_flag){
+        get_bits1(&h->gb);     /* motion_vectors_over_pic_boundaries_flag */
+        get_ue_golomb(&h->gb); /* max_bytes_per_pic_denom */
+        get_ue_golomb(&h->gb); /* max_bits_per_mb_denom */
+        get_ue_golomb(&h->gb); /* log2_max_mv_length_horizontal */
+        get_ue_golomb(&h->gb); /* log2_max_mv_length_vertical */
+        sps->num_reorder_frames= get_ue_golomb(&h->gb);
+        get_ue_golomb(&h->gb); /*max_dec_frame_buffering*/
+
+        if (get_bits_left(&h->gb) < 0) {
+            sps->num_reorder_frames=0;
+            sps->bitstream_restriction_flag= 0;
+        }
+
+        if(sps->num_reorder_frames > 16U /*max_dec_frame_buffering || max_dec_frame_buffering > 16*/){
+            av_log(h->avctx, AV_LOG_ERROR, "illegal num_reorder_frames %d\n", sps->num_reorder_frames);
+            return -1;
+        }
+    }
+
+    if (get_bits_left(&h->gb) < 0) {
+        av_log(h->avctx, AV_LOG_ERROR, "Overread VUI by %d bits\n", -get_bits_left(&h->gb));
+        return AVERROR_INVALIDDATA;
+    }
+
+    return 0;
+}
+
+static void decode_scaling_list(H264Context *h, uint8_t *factors, int size,
+                                const uint8_t *jvt_list, const uint8_t *fallback_list){
+    int i, last = 8, next = 8;
+    const uint8_t *scan = size == 16 ? zigzag_scan : ff_zigzag_direct;
+    if(!get_bits1(&h->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(&h->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]){
+    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[3] : default_scaling8[1]
+    };
+    if(get_bits1(&h->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[3],64,default_scaling8[1],fallback[3]);  // Inter, Y
+            if(sps->chroma_format_idc == 3){
+                decode_scaling_list(h,scaling_matrix8[1],64,default_scaling8[0],scaling_matrix8[0]);  // Intra, Cr
+                decode_scaling_list(h,scaling_matrix8[4],64,default_scaling8[1],scaling_matrix8[3]);  // Inter, Cr
+                decode_scaling_list(h,scaling_matrix8[2],64,default_scaling8[0],scaling_matrix8[1]);  // Intra, Cb
+                decode_scaling_list(h,scaling_matrix8[5],64,default_scaling8[1],scaling_matrix8[4]);  // Inter, Cb
+            }
+        }
+    }
+}
+
+int ff_h264_decode_seq_parameter_set(H264Context *h){
+    int profile_idc, level_idc, constraint_set_flags = 0;
+    unsigned int sps_id;
+    int i, log2_max_frame_num_minus4;
+    SPS *sps;
+
+    profile_idc= get_bits(&h->gb, 8);
+    constraint_set_flags |= get_bits1(&h->gb) << 0;   //constraint_set0_flag
+    constraint_set_flags |= get_bits1(&h->gb) << 1;   //constraint_set1_flag
+    constraint_set_flags |= get_bits1(&h->gb) << 2;   //constraint_set2_flag
+    constraint_set_flags |= get_bits1(&h->gb) << 3;   //constraint_set3_flag
+    constraint_set_flags |= get_bits1(&h->gb) << 4;   //constraint_set4_flag
+    constraint_set_flags |= get_bits1(&h->gb) << 5;   //constraint_set5_flag
+    get_bits(&h->gb, 2); // reserved
+    level_idc= get_bits(&h->gb, 8);
+    sps_id= get_ue_golomb_31(&h->gb);
+
+    if(sps_id >= MAX_SPS_COUNT) {
+        av_log(h->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->time_offset_length = 24;
+    sps->profile_idc= profile_idc;
+    sps->constraint_set_flags = constraint_set_flags;
+    sps->level_idc= level_idc;
+    sps->full_range = -1;
+
+    memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4));
+    memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8));
+    sps->scaling_matrix_present = 0;
+    sps->colorspace = 2; //AVCOL_SPC_UNSPECIFIED
+
+    if (sps->profile_idc == 100 || sps->profile_idc == 110 ||
+        sps->profile_idc == 122 || sps->profile_idc == 244 ||
+        sps->profile_idc ==  44 || sps->profile_idc ==  83 ||
+        sps->profile_idc ==  86 || sps->profile_idc == 118 ||
+        sps->profile_idc == 128 || sps->profile_idc == 144) {
+        sps->chroma_format_idc= get_ue_golomb_31(&h->gb);
+        if (sps->chroma_format_idc > 3U) {
+            av_log(h->avctx, AV_LOG_ERROR, "chroma_format_idc %d is illegal\n", sps->chroma_format_idc);
+            goto fail;
+        } else if(sps->chroma_format_idc == 3) {
+            sps->residual_color_transform_flag = get_bits1(&h->gb);
+            if(sps->residual_color_transform_flag) {
+                av_log(h->avctx, AV_LOG_ERROR, "separate color planes are not supported\n");
+                goto fail;
+            }
+        }
+        sps->bit_depth_luma   = get_ue_golomb(&h->gb) + 8;
+        sps->bit_depth_chroma = get_ue_golomb(&h->gb) + 8;
+        if (sps->bit_depth_luma > 14U || sps->bit_depth_chroma > 14U || sps->bit_depth_luma != sps->bit_depth_chroma) {
+            av_log(h->avctx, AV_LOG_ERROR, "illegal bit depth value (%d, %d)\n",
+                   sps->bit_depth_luma, sps->bit_depth_chroma);
+            goto fail;
+        }
+        sps->transform_bypass = get_bits1(&h->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;
+    }
+
+    log2_max_frame_num_minus4 = get_ue_golomb(&h->gb);
+    if (log2_max_frame_num_minus4 < MIN_LOG2_MAX_FRAME_NUM - 4 ||
+        log2_max_frame_num_minus4 > MAX_LOG2_MAX_FRAME_NUM - 4) {
+        av_log(h->avctx, AV_LOG_ERROR,
+               "log2_max_frame_num_minus4 out of range (0-12): %d\n",
+               log2_max_frame_num_minus4);
+        goto fail;
+    }
+    sps->log2_max_frame_num = log2_max_frame_num_minus4 + 4;
+
+    sps->poc_type= get_ue_golomb_31(&h->gb);
+
+    if(sps->poc_type == 0){ //FIXME #define
+        unsigned t = get_ue_golomb(&h->gb);
+        if(t>12){
+            av_log(h->avctx, AV_LOG_ERROR, "log2_max_poc_lsb (%d) is out of range\n", t);
+            goto fail;
+        }
+        sps->log2_max_poc_lsb= t + 4;
+    } else if(sps->poc_type == 1){//FIXME #define
+        sps->delta_pic_order_always_zero_flag= get_bits1(&h->gb);
+        sps->offset_for_non_ref_pic= get_se_golomb(&h->gb);
+        sps->offset_for_top_to_bottom_field= get_se_golomb(&h->gb);
+        sps->poc_cycle_length                = get_ue_golomb(&h->gb);
+
+        if((unsigned)sps->poc_cycle_length >= FF_ARRAY_ELEMS(sps->offset_for_ref_frame)){
+            av_log(h->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(&h->gb);
+    }else if(sps->poc_type != 2){
+        av_log(h->avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
+        goto fail;
+    }
+
+    sps->ref_frame_count= get_ue_golomb_31(&h->gb);
+    if (h->avctx->codec_tag == MKTAG('S', 'M', 'V', '2'))
+        sps->ref_frame_count= FFMAX(2, sps->ref_frame_count);
+    if(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count > 16U){
+        av_log(h->avctx, AV_LOG_ERROR, "too many reference frames\n");
+        goto fail;
+    }
+    sps->gaps_in_frame_num_allowed_flag= get_bits1(&h->gb);
+    sps->mb_width = get_ue_golomb(&h->gb) + 1;
+    sps->mb_height= get_ue_golomb(&h->gb) + 1;
+    if((unsigned)sps->mb_width >= INT_MAX/16 || (unsigned)sps->mb_height >= INT_MAX/16 ||
+       av_image_check_size(16*sps->mb_width, 16*sps->mb_height, 0, h->avctx)){
+        av_log(h->avctx, AV_LOG_ERROR, "mb_width/height overflow\n");
+        goto fail;
+    }
+
+    sps->frame_mbs_only_flag= get_bits1(&h->gb);
+    if(!sps->frame_mbs_only_flag)
+        sps->mb_aff= get_bits1(&h->gb);
+    else
+        sps->mb_aff= 0;
+
+    sps->direct_8x8_inference_flag= get_bits1(&h->gb);
+
+#ifndef ALLOW_INTERLACE
+    if(sps->mb_aff)
+        av_log(h->avctx, AV_LOG_ERROR, "MBAFF support not included; enable it at compile-time.\n");
+#endif
+    sps->crop= get_bits1(&h->gb);
+    if(sps->crop){
+        int crop_vertical_limit   = sps->chroma_format_idc  & 2 ? 16 : 8;
+        int crop_horizontal_limit = sps->chroma_format_idc == 3 ? 16 : 8;
+        sps->crop_left  = get_ue_golomb(&h->gb);
+        sps->crop_right = get_ue_golomb(&h->gb);
+        sps->crop_top   = get_ue_golomb(&h->gb);
+        sps->crop_bottom= get_ue_golomb(&h->gb);
+        if (h->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
+            av_log(h->avctx, AV_LOG_DEBUG,
+                   "discarding sps cropping, "
+                   "original values are l:%u r:%u t:%u b:%u\n",
+                   sps->crop_left,
+                   sps->crop_right,
+                   sps->crop_top,
+                   sps->crop_bottom);
+
+            sps->crop_left   =
+            sps->crop_right  =
+            sps->crop_top    =
+            sps->crop_bottom = 0;
+        }
+        if(sps->crop_left || sps->crop_top){
+            av_log(h->avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ... (left: %d, top: %d)\n", sps->crop_left, sps->crop_top);
+        }
+        if(sps->crop_right >= crop_horizontal_limit || sps->crop_bottom >= crop_vertical_limit){
+            av_log(h->avctx, AV_LOG_ERROR, "brainfart cropping not supported, cropping disabled (right: %d, bottom: %d)\n", sps->crop_right, sps->crop_bottom);
+        /* It is very unlikely that partial cropping will make anybody happy.
+         * Not cropping at all fixes for example playback of Sisvel 3D streams
+         * in applications supporting Sisvel 3D. */
+        sps->crop_left  =
+        sps->crop_right =
+        sps->crop_top   =
+        sps->crop_bottom= 0;
+        }
+    }else{
+        sps->crop_left  =
+        sps->crop_right =
+        sps->crop_top   =
+        sps->crop_bottom= 0;
+    }
+
+    sps->vui_parameters_present_flag= get_bits1(&h->gb);
+    if( sps->vui_parameters_present_flag )
+        if (decode_vui_parameters(h, sps) < 0)
+            goto fail;
+
+    if(!sps->sar.den)
+        sps->sar.den= 1;
+
+    if(h->avctx->debug&FF_DEBUG_PICT_INFO){
+        static const char csp[4][5] = { "Gray", "420", "422", "444" };
+        av_log(h->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 b%d reo:%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" : "",
+               csp[sps->chroma_format_idc],
+               sps->timing_info_present_flag ? sps->num_units_in_tick : 0,
+               sps->timing_info_present_flag ? sps->time_scale : 0,
+               sps->bit_depth_luma,
+               h->sps.bitstream_restriction_flag ? sps->num_reorder_frames : -1
+               );
+    }
+    sps->new = 1;
+
+    av_free(h->sps_buffers[sps_id]);
+    h->sps_buffers[sps_id] = sps;
+    h->sps                 = *sps;
+    h->current_sps_id      = sps_id;
+
+    return 0;
+fail:
+    av_free(sps);
+    return -1;
+}
+
+static void
+build_qp_table(PPS *pps, int t, int index, const int depth)
+{
+    int i;
+    const int max_qp = 51 + 6*(depth-8);
+    for(i = 0; i < max_qp+1; i++)
+        pps->chroma_qp_table[t][i] = ff_h264_chroma_qp[depth-8][av_clip(i + index, 0, max_qp)];
+}
+
+static int more_rbsp_data_in_pps(H264Context *h, PPS *pps)
+{
+    const SPS *sps = h->sps_buffers[pps->sps_id];
+    int profile_idc = sps->profile_idc;
+
+    if ((profile_idc == 66 || profile_idc == 77 ||
+         profile_idc == 88) && (sps->constraint_set_flags & 7)) {
+        av_log(h->avctx, AV_LOG_VERBOSE,
+               "Current profile doesn't provide more RBSP data in PPS, skipping\n");
+        return 0;
+    }
+
+    return 1;
+}
+
+int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length){
+    unsigned int pps_id= get_ue_golomb(&h->gb);
+    PPS *pps;
+    const int qp_bd_offset = 6*(h->sps.bit_depth_luma-8);
+    int bits_left;
+
+    if(pps_id >= MAX_PPS_COUNT) {
+        av_log(h->avctx, AV_LOG_ERROR, "pps_id (%d) out of range\n", pps_id);
+        return -1;
+    } else if (h->sps.bit_depth_luma > 14) {
+        av_log(h->avctx, AV_LOG_ERROR, "Invalid luma bit depth=%d\n", h->sps.bit_depth_luma);
+        return AVERROR_INVALIDDATA;
+    } else if (h->sps.bit_depth_luma == 11 || h->sps.bit_depth_luma == 13) {
+        av_log(h->avctx, AV_LOG_ERROR, "Unimplemented luma bit depth=%d\n", h->sps.bit_depth_luma);
+        return AVERROR_PATCHWELCOME;
+    }
+
+    pps= av_mallocz(sizeof(PPS));
+    if(pps == NULL)
+        return -1;
+    pps->sps_id= get_ue_golomb_31(&h->gb);
+    if((unsigned)pps->sps_id>=MAX_SPS_COUNT || h->sps_buffers[pps->sps_id] == NULL){
+        av_log(h->avctx, AV_LOG_ERROR, "sps_id out of range\n");
+        goto fail;
+    }
+
+    pps->cabac= get_bits1(&h->gb);
+    pps->pic_order_present= get_bits1(&h->gb);
+    pps->slice_group_count= get_ue_golomb(&h->gb) + 1;
+    if(pps->slice_group_count > 1 ){
+        pps->mb_slice_group_map_type= get_ue_golomb(&h->gb);
+        av_log(h->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(&h->gb) + 1;
+    pps->ref_count[1]= get_ue_golomb(&h->gb) + 1;
+    if(pps->ref_count[0]-1 > 32-1 || pps->ref_count[1]-1 > 32-1){
+        av_log(h->avctx, AV_LOG_ERROR, "reference overflow (pps)\n");
+        goto fail;
+    }
+
+    pps->weighted_pred= get_bits1(&h->gb);
+    pps->weighted_bipred_idc= get_bits(&h->gb, 2);
+    pps->init_qp= get_se_golomb(&h->gb) + 26 + qp_bd_offset;
+    pps->init_qs= get_se_golomb(&h->gb) + 26 + qp_bd_offset;
+    pps->chroma_qp_index_offset[0]= get_se_golomb(&h->gb);
+    pps->deblocking_filter_parameters_present= get_bits1(&h->gb);
+    pps->constrained_intra_pred= get_bits1(&h->gb);
+    pps->redundant_pic_cnt_present = get_bits1(&h->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));
+
+    bits_left = bit_length - get_bits_count(&h->gb);
+    if(bits_left > 0 && more_rbsp_data_in_pps(h, pps)){
+        pps->transform_8x8_mode= get_bits1(&h->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(&h->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], h->sps.bit_depth_luma);
+    build_qp_table(pps, 1, pps->chroma_qp_index_offset[1], h->sps.bit_depth_luma);
+    if(pps->chroma_qp_index_offset[0] != pps->chroma_qp_index_offset[1])
+        pps->chroma_qp_diff= 1;
+
+    if(h->avctx->debug&FF_DEBUG_PICT_INFO){
+        av_log(h->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;
+}