chasing indexing error

1 files changed, 0 insertions, 724 deletions

diff --git a/ffmpeg/libavcodec/h264_ps.c b/ffmpeg/libavcodec/h264_ps.c
deleted file mode 100644
index a06e3dd..0000000
--- a/ffmpeg/libavcodec/h264_ps.c
+++ /dev/null
@@ -1,724 +0,0 @@
-/*
- * 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"
-
-#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 AVERROR_INVALIDDATA;
-    }
-
-    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 AVERROR_INVALIDDATA;
-        }
-    } else {
-        sps->sar.num =
-        sps->sar.den = 0;
-    }
-
-    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;
-        }
-    }
-
-    /* chroma_location_info_present_flag */
-    if (get_bits1(&h->gb)) {
-        /* chroma_sample_location_type_top_field */
-        h->avctx->chroma_sample_location = get_ue_golomb(&h->gb) + 1;
-        get_ue_golomb(&h->gb);  /* chroma_sample_location_type_bottom_field */
-    }
-
-    if (show_bits1(&h->gb) && get_bits_left(&h->gb) < 10) {
-        av_log(h->avctx, AV_LOG_WARNING, "Truncated VUI\n");
-        return 0;
-    }
-
-    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 AVERROR_INVALIDDATA;
-        }
-        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 AVERROR_INVALIDDATA;
-    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 AVERROR_INVALIDDATA;
-    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 AVERROR_INVALIDDATA;
-        }
-    }
-
-    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 AVERROR_INVALIDDATA;
-    }
-    sps = av_mallocz(sizeof(SPS));
-    if (!sps)
-        return AVERROR(ENOMEM);
-
-    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_left   = get_ue_golomb(&h->gb);
-        int crop_right  = get_ue_golomb(&h->gb);
-        int crop_top    = get_ue_golomb(&h->gb);
-        int crop_bottom = get_ue_golomb(&h->gb);
-        int width  = 16 * sps->mb_width;
-        int height = 16 * sps->mb_height * (2 - sps->frame_mbs_only_flag);
-
-        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",
-                   crop_left, crop_right, crop_top, crop_bottom);
-
-            sps->crop_left   =
-            sps->crop_right  =
-            sps->crop_top    =
-            sps->crop_bottom = 0;
-        } else {
-            int vsub   = (sps->chroma_format_idc == 1) ? 1 : 0;
-            int hsub   = (sps->chroma_format_idc == 1 ||
-                          sps->chroma_format_idc == 2) ? 1 : 0;
-            int step_x = 1 << hsub;
-            int step_y = (2 - sps->frame_mbs_only_flag) << vsub;
-
-            if (crop_left & (0x1F >> (sps->bit_depth_luma > 8)) &&
-                !(h->avctx->flags & CODEC_FLAG_UNALIGNED)) {
-                crop_left &= ~(0x1F >> (sps->bit_depth_luma > 8));
-                av_log(h->avctx, AV_LOG_WARNING,
-                       "Reducing left cropping to %d "
-                       "chroma samples to preserve alignment.\n",
-                       crop_left);
-            }
-
-            if (crop_left  > (unsigned)INT_MAX / 4 / step_x ||
-                crop_right > (unsigned)INT_MAX / 4 / step_x ||
-                crop_top   > (unsigned)INT_MAX / 4 / step_y ||
-                crop_bottom> (unsigned)INT_MAX / 4 / step_y ||
-                (crop_left + crop_right ) * step_x >= width ||
-                (crop_top  + crop_bottom) * step_y >= height
-            ) {
-                av_log(h->avctx, AV_LOG_ERROR, "crop values invalid %d %d %d %d / %d %d\n", crop_left, crop_right, crop_top, crop_bottom, width, height);
-                goto fail;
-            }
-
-            sps->crop_left   = crop_left   * step_x;
-            sps->crop_right  = crop_right  * step_x;
-            sps->crop_top    = crop_top    * step_y;
-            sps->crop_bottom = crop_bottom * step_y;
-        }
-    } else {
-        sps->crop_left   =
-        sps->crop_right  =
-        sps->crop_top    =
-        sps->crop_bottom =
-        sps->crop        = 0;
-    }
-
-    sps->vui_parameters_present_flag = get_bits1(&h->gb);
-    if (sps->vui_parameters_present_flag) {
-        int ret = decode_vui_parameters(h, sps);
-        if (ret < 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;
-
-    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;
-    SPS *sps;
-    int qp_bd_offset;
-    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 AVERROR_INVALIDDATA;
-    }
-
-    pps = av_mallocz(sizeof(PPS));
-    if (!pps)
-        return AVERROR(ENOMEM);
-    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;
-    }
-    sps = h->sps_buffers[pps->sps_id];
-    qp_bd_offset = 6 * (sps->bit_depth_luma - 8);
-    if (sps->bit_depth_luma > 14) {
-        av_log(h->avctx, AV_LOG_ERROR,
-               "Invalid luma bit depth=%d\n",
-               sps->bit_depth_luma);
-        goto fail;
-    } else if (sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13) {
-        av_log(h->avctx, AV_LOG_ERROR,
-               "Unimplemented luma bit depth=%d\n",
-               sps->bit_depth_luma);
-        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;
-    // contents of sps/pps can change even if id doesn't, so reinit
-    h->dequant_coeff_pps = -1;
-    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);
-        // second_chroma_qp_index_offset
-        pps->chroma_qp_index_offset[1] = get_se_golomb(&h->gb);
-    } else {
-        pps->chroma_qp_index_offset[1] = pps->chroma_qp_index_offset[0];
-    }
-
-    build_qp_table(pps, 0, pps->chroma_qp_index_offset[0], sps->bit_depth_luma);
-    build_qp_table(pps, 1, pps->chroma_qp_index_offset[1], 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;
-}