/**
* @file
- * H.264 / AVC / MPEG4 part10 parameter set decoding.
+ * H.264 / AVC / MPEG-4 part10 parameter set decoding.
* @author Michael Niedermayer <michaelni@gmx.at>
*/
+#include <inttypes.h>
+
#include "libavutil/imgutils.h"
#include "internal.h"
+#include "mathops.h"
#include "avcodec.h"
#include "h264.h"
-#include "h264data.h" //FIXME FIXME FIXME (just for zigzag_scan)
+#include "h264data.h"
#include "golomb.h"
#define MAX_LOG2_MAX_FRAME_NUM (12 + 4)
{ 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[3][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) },
-};
-
static const uint8_t default_scaling4[2][16] = {
{ 6, 13, 20, 28, 13, 20, 28, 32,
20, 28, 32, 37, 28, 32, 37, 42 },
24, 25, 27, 28, 30, 32, 33, 35 }
};
-static inline int decode_hrd_parameters(H264Context *h, SPS *sps)
+/* maximum number of MBs in the DPB for a given level */
+static const int level_max_dpb_mbs[][2] = {
+ { 10, 396 },
+ { 11, 900 },
+ { 12, 2376 },
+ { 13, 2376 },
+ { 20, 2376 },
+ { 21, 4752 },
+ { 22, 8100 },
+ { 30, 8100 },
+ { 31, 18000 },
+ { 32, 20480 },
+ { 40, 32768 },
+ { 41, 32768 },
+ { 42, 34816 },
+ { 50, 110400 },
+ { 51, 184320 },
+ { 52, 184320 },
+};
+
+static void remove_pps(H264ParamSets *s, int id)
+{
+ if (s->pps_list[id] && s->pps == (const PPS*)s->pps_list[id]->data)
+ s->pps = NULL;
+ av_buffer_unref(&s->pps_list[id]);
+}
+
+static void remove_sps(H264ParamSets *s, int id)
+{
+ int i;
+ if (s->sps_list[id]) {
+ if (s->sps == (SPS*)s->sps_list[id]->data)
+ s->sps = NULL;
+
+ /* drop all PPS that depend on this SPS */
+ for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
+ if (s->pps_list[i] && ((PPS*)s->pps_list[i]->data)->sps_id == id)
+ remove_pps(s, i);
+ }
+ av_buffer_unref(&s->sps_list[id]);
+}
+
+static inline int decode_hrd_parameters(GetBitContext *gb, AVCodecContext *avctx,
+ SPS *sps)
{
int cpb_count, i;
- cpb_count = get_ue_golomb_31(&h->gb) + 1;
+ cpb_count = get_ue_golomb_31(gb) + 1;
if (cpb_count > 32U) {
- av_log(h->avctx, AV_LOG_ERROR, "cpb_count %d invalid\n", cpb_count);
+ av_log(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 */
+ get_bits(gb, 4); /* bit_rate_scale */
+ get_bits(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);
+ get_ue_golomb_long(gb); /* bit_rate_value_minus1 */
+ get_ue_golomb_long(gb); /* cpb_size_value_minus1 */
+ get_bits1(gb); /* cbr_flag */
+ }
+ sps->initial_cpb_removal_delay_length = get_bits(gb, 5) + 1;
+ sps->cpb_removal_delay_length = get_bits(gb, 5) + 1;
+ sps->dpb_output_delay_length = get_bits(gb, 5) + 1;
+ sps->time_offset_length = get_bits(gb, 5);
sps->cpb_cnt = cpb_count;
return 0;
}
-static inline int decode_vui_parameters(H264Context *h, SPS *sps)
+static inline int decode_vui_parameters(GetBitContext *gb, AVCodecContext *avctx,
+ SPS *sps)
{
int aspect_ratio_info_present_flag;
unsigned int aspect_ratio_idc;
- aspect_ratio_info_present_flag = get_bits1(&h->gb);
+ aspect_ratio_info_present_flag = get_bits1(gb);
if (aspect_ratio_info_present_flag) {
- aspect_ratio_idc = get_bits(&h->gb, 8);
+ aspect_ratio_idc = get_bits(gb, 8);
if (aspect_ratio_idc == EXTENDED_SAR) {
- sps->sar.num = get_bits(&h->gb, 16);
- sps->sar.den = get_bits(&h->gb, 16);
+ sps->sar.num = get_bits(gb, 16);
+ sps->sar.den = get_bits(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");
+ av_log(avctx, AV_LOG_ERROR, "illegal aspect ratio\n");
return AVERROR_INVALIDDATA;
}
} else {
sps->sar.den = 0;
}
- if (get_bits1(&h->gb)) /* overscan_info_present_flag */
- get_bits1(&h->gb); /* overscan_appropriate_flag */
+ if (get_bits1(gb)) /* overscan_info_present_flag */
+ get_bits1(gb); /* overscan_appropriate_flag */
- sps->video_signal_type_present_flag = get_bits1(&h->gb);
+ sps->video_signal_type_present_flag = get_bits1(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 */
+ get_bits(gb, 3); /* video_format */
+ sps->full_range = get_bits1(gb); /* video_full_range_flag */
- sps->colour_description_present_flag = get_bits1(&h->gb);
+ sps->colour_description_present_flag = get_bits1(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 */
+ sps->color_primaries = get_bits(gb, 8); /* colour_primaries */
+ sps->color_trc = get_bits(gb, 8); /* transfer_characteristics */
+ sps->colorspace = get_bits(gb, 8); /* matrix_coefficients */
if (sps->color_primaries >= AVCOL_PRI_NB)
sps->color_primaries = AVCOL_PRI_UNSPECIFIED;
if (sps->color_trc >= AVCOL_TRC_NB)
}
/* chroma_location_info_present_flag */
- if (get_bits1(&h->gb)) {
+ if (get_bits1(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 */
+ avctx->chroma_sample_location = get_ue_golomb(gb) + 1;
+ get_ue_golomb(gb); /* chroma_sample_location_type_bottom_field */
}
- sps->timing_info_present_flag = get_bits1(&h->gb);
+ sps->timing_info_present_flag = get_bits1(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);
+ sps->num_units_in_tick = get_bits_long(gb, 32);
+ sps->time_scale = get_bits_long(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",
+ av_log(avctx, AV_LOG_ERROR,
+ "time_scale/num_units_in_tick invalid or unsupported (%"PRIu32"/%"PRIu32")\n",
sps->time_scale, sps->num_units_in_tick);
return AVERROR_INVALIDDATA;
}
- sps->fixed_frame_rate_flag = get_bits1(&h->gb);
+ sps->fixed_frame_rate_flag = get_bits1(gb);
}
- sps->nal_hrd_parameters_present_flag = get_bits1(&h->gb);
+ sps->nal_hrd_parameters_present_flag = get_bits1(gb);
if (sps->nal_hrd_parameters_present_flag)
- if (decode_hrd_parameters(h, sps) < 0)
+ if (decode_hrd_parameters(gb, avctx, sps) < 0)
return AVERROR_INVALIDDATA;
- sps->vcl_hrd_parameters_present_flag = get_bits1(&h->gb);
+ sps->vcl_hrd_parameters_present_flag = get_bits1(gb);
if (sps->vcl_hrd_parameters_present_flag)
- if (decode_hrd_parameters(h, sps) < 0)
+ if (decode_hrd_parameters(gb, avctx, 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);
+ get_bits1(gb); /* low_delay_hrd_flag */
+ sps->pic_struct_present_flag = get_bits1(gb);
- sps->bitstream_restriction_flag = get_bits1(&h->gb);
+ sps->bitstream_restriction_flag = get_bits1(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) {
+ get_bits1(gb); /* motion_vectors_over_pic_boundaries_flag */
+ get_ue_golomb(gb); /* max_bytes_per_pic_denom */
+ get_ue_golomb(gb); /* max_bits_per_mb_denom */
+ get_ue_golomb(gb); /* log2_max_mv_length_horizontal */
+ get_ue_golomb(gb); /* log2_max_mv_length_vertical */
+ sps->num_reorder_frames = get_ue_golomb(gb);
+ get_ue_golomb(gb); /*max_dec_frame_buffering*/
+
+ if (get_bits_left(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,
+ av_log(avctx, AV_LOG_ERROR,
"Clipping illegal num_reorder_frames %d\n",
sps->num_reorder_frames);
sps->num_reorder_frames = 16;
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));
+ if (get_bits_left(gb) < 0) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Overread VUI by %d bits\n", -get_bits_left(gb));
return AVERROR_INVALIDDATA;
}
return 0;
}
-static void decode_scaling_list(H264Context *h, uint8_t *factors, int size,
+static void decode_scaling_list(GetBitContext *gb, 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 */
+ const uint8_t *scan = size == 16 ? ff_zigzag_scan : ff_zigzag_direct;
+ if (!get_bits1(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;
+ next = (last + get_se_golomb(gb)) & 0xff;
if (!i && !next) { /* matrix not written, we use the preset one */
memcpy(factors, jvt_list, size * sizeof(uint8_t));
break;
}
}
-static void decode_scaling_matrices(H264Context *h, SPS *sps,
+static void decode_scaling_matrices(GetBitContext *gb, SPS *sps,
PPS *pps, int is_sps,
uint8_t(*scaling_matrix4)[16],
uint8_t(*scaling_matrix8)[64])
fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0],
fallback_sps ? sps->scaling_matrix8[3] : default_scaling8[1]
};
- if (get_bits1(&h->gb)) {
+ if (get_bits1(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
+ decode_scaling_list(gb, scaling_matrix4[0], 16, default_scaling4[0], fallback[0]); // Intra, Y
+ decode_scaling_list(gb, scaling_matrix4[1], 16, default_scaling4[0], scaling_matrix4[0]); // Intra, Cr
+ decode_scaling_list(gb, scaling_matrix4[2], 16, default_scaling4[0], scaling_matrix4[1]); // Intra, Cb
+ decode_scaling_list(gb, scaling_matrix4[3], 16, default_scaling4[1], fallback[1]); // Inter, Y
+ decode_scaling_list(gb, scaling_matrix4[4], 16, default_scaling4[1], scaling_matrix4[3]); // Inter, Cr
+ decode_scaling_list(gb, 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(gb, scaling_matrix8[0], 64, default_scaling8[0], fallback[2]); // Intra, 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[2], 64, default_scaling8[0], scaling_matrix8[1]); // Intra, Cb
+ decode_scaling_list(gb, scaling_matrix8[1], 64, default_scaling8[0], scaling_matrix8[0]); // Intra, Cr
+ decode_scaling_list(gb, scaling_matrix8[2], 64, default_scaling8[0], scaling_matrix8[1]); // Intra, Cb
}
- decode_scaling_list(h, scaling_matrix8[3], 64, default_scaling8[1], fallback[3]); // Inter, Y
+ decode_scaling_list(gb, scaling_matrix8[3], 64, default_scaling8[1], fallback[3]); // Inter, Y
if (sps->chroma_format_idc == 3) {
- decode_scaling_list(h, scaling_matrix8[4], 64, default_scaling8[1], scaling_matrix8[3]); // Inter, Cr
- decode_scaling_list(h, scaling_matrix8[5], 64, default_scaling8[1], scaling_matrix8[4]); // Inter, Cb
+ decode_scaling_list(gb, scaling_matrix8[4], 64, default_scaling8[1], scaling_matrix8[3]); // Inter, Cr
+ decode_scaling_list(gb, scaling_matrix8[5], 64, default_scaling8[1], scaling_matrix8[4]); // Inter, Cb
}
}
}
}
-int ff_h264_decode_seq_parameter_set(H264Context *h)
+int ff_h264_decode_seq_parameter_set(GetBitContext *gb, AVCodecContext *avctx,
+ H264ParamSets *ps)
{
+ AVBufferRef *sps_buf;
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
- skip_bits(&h->gb, 2); // reserved_zero_2bits
- level_idc = get_bits(&h->gb, 8);
- sps_id = get_ue_golomb_31(&h->gb);
+ profile_idc = get_bits(gb, 8);
+ constraint_set_flags |= get_bits1(gb) << 0; // constraint_set0_flag
+ constraint_set_flags |= get_bits1(gb) << 1; // constraint_set1_flag
+ constraint_set_flags |= get_bits1(gb) << 2; // constraint_set2_flag
+ constraint_set_flags |= get_bits1(gb) << 3; // constraint_set3_flag
+ constraint_set_flags |= get_bits1(gb) << 4; // constraint_set4_flag
+ constraint_set_flags |= get_bits1(gb) << 5; // constraint_set5_flag
+ skip_bits(gb, 2); // reserved_zero_2bits
+ level_idc = get_bits(gb, 8);
+ sps_id = get_ue_golomb_31(gb);
if (sps_id >= MAX_SPS_COUNT) {
- av_log(h->avctx, AV_LOG_ERROR, "sps_id %u out of range\n", sps_id);
+ av_log(avctx, AV_LOG_ERROR, "sps_id %u out of range\n", sps_id);
return AVERROR_INVALIDDATA;
}
- sps = av_mallocz(sizeof(SPS));
- if (!sps)
+
+ sps_buf = av_buffer_allocz(sizeof(*sps));
+ if (!sps_buf)
return AVERROR(ENOMEM);
+ sps = (SPS*)sps_buf->data;
sps->sps_id = sps_id;
sps->time_offset_length = 24;
sps->profile_idc == 128 || // Multiview High profile (MVC)
sps->profile_idc == 138 || // Multiview Depth High profile (MVCD)
sps->profile_idc == 144) { // old High444 profile
- sps->chroma_format_idc = get_ue_golomb_31(&h->gb);
+ sps->chroma_format_idc = get_ue_golomb_31(gb);
if (sps->chroma_format_idc > 3) {
- avpriv_request_sample(h->avctx, "chroma_format_idc %u",
+ avpriv_request_sample(avctx, "chroma_format_idc %u",
sps->chroma_format_idc);
goto fail;
} else if (sps->chroma_format_idc == 3) {
- sps->residual_color_transform_flag = get_bits1(&h->gb);
+ sps->residual_color_transform_flag = get_bits1(gb);
}
- sps->bit_depth_luma = get_ue_golomb(&h->gb) + 8;
- sps->bit_depth_chroma = get_ue_golomb(&h->gb) + 8;
+ sps->bit_depth_luma = get_ue_golomb(gb) + 8;
+ sps->bit_depth_chroma = get_ue_golomb(gb) + 8;
if (sps->bit_depth_chroma != sps->bit_depth_luma) {
- avpriv_request_sample(h->avctx,
+ avpriv_request_sample(avctx,
"Different chroma and luma bit depth");
goto fail;
}
- sps->transform_bypass = get_bits1(&h->gb);
- decode_scaling_matrices(h, sps, NULL, 1,
+ sps->transform_bypass = get_bits1(gb);
+ decode_scaling_matrices(gb, sps, NULL, 1,
sps->scaling_matrix4, sps->scaling_matrix8);
} else {
sps->chroma_format_idc = 1;
sps->bit_depth_chroma = 8;
}
- log2_max_frame_num_minus4 = get_ue_golomb(&h->gb);
+ log2_max_frame_num_minus4 = get_ue_golomb(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,
+ av_log(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);
+ sps->poc_type = get_ue_golomb_31(gb);
if (sps->poc_type == 0) { // FIXME #define
- sps->log2_max_poc_lsb = get_ue_golomb(&h->gb) + 4;
+ sps->log2_max_poc_lsb = get_ue_golomb(gb) + 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);
+ sps->delta_pic_order_always_zero_flag = get_bits1(gb);
+ sps->offset_for_non_ref_pic = get_se_golomb(gb);
+ sps->offset_for_top_to_bottom_field = get_se_golomb(gb);
+ sps->poc_cycle_length = get_ue_golomb(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);
+ av_log(avctx, AV_LOG_ERROR,
+ "poc_cycle_length overflow %d\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);
+ sps->offset_for_ref_frame[i] = get_se_golomb(gb);
} else if (sps->poc_type != 2) {
- av_log(h->avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
+ av_log(avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
goto fail;
}
- sps->ref_frame_count = get_ue_golomb_31(&h->gb);
+ sps->ref_frame_count = get_ue_golomb_31(gb);
if (sps->ref_frame_count > H264_MAX_PICTURE_COUNT - 2 ||
sps->ref_frame_count >= 32U) {
- av_log(h->avctx, AV_LOG_ERROR,
+ av_log(avctx, AV_LOG_ERROR,
"too many reference frames %d\n", sps->ref_frame_count);
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;
+ sps->gaps_in_frame_num_allowed_flag = get_bits1(gb);
+ sps->mb_width = get_ue_golomb(gb) + 1;
+ sps->mb_height = get_ue_golomb(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");
+ 16 * sps->mb_height, 0, avctx)) {
+ av_log(avctx, AV_LOG_ERROR, "mb_width/height overflow\n");
goto fail;
}
- sps->frame_mbs_only_flag = get_bits1(&h->gb);
+ sps->frame_mbs_only_flag = get_bits1(gb);
if (!sps->frame_mbs_only_flag)
- sps->mb_aff = get_bits1(&h->gb);
+ sps->mb_aff = get_bits1(gb);
else
sps->mb_aff = 0;
- sps->direct_8x8_inference_flag = get_bits1(&h->gb);
+ sps->direct_8x8_inference_flag = get_bits1(gb);
if (!sps->frame_mbs_only_flag && !sps->direct_8x8_inference_flag) {
- av_log(h->avctx, AV_LOG_ERROR,
+ av_log(avctx, AV_LOG_ERROR,
"This stream was generated by a broken encoder, invalid 8x8 inference\n");
goto fail;
}
#ifndef ALLOW_INTERLACE
if (sps->mb_aff)
- av_log(h->avctx, AV_LOG_ERROR,
+ av_log(avctx, AV_LOG_ERROR,
"MBAFF support not included; enable it at compile-time.\n");
#endif
- sps->crop = get_bits1(&h->gb);
+ sps->crop = get_bits1(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);
-
- 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",
+ unsigned int crop_left = get_ue_golomb(gb);
+ unsigned int crop_right = get_ue_golomb(gb);
+ unsigned int crop_top = get_ue_golomb(gb);
+ unsigned int crop_bottom = get_ue_golomb(gb);
+
+ if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
+ av_log(avctx, AV_LOG_DEBUG, "discarding sps cropping, original "
+ "values are l:%d r:%d t:%d b:%d\n",
crop_left, crop_right, crop_top, crop_bottom);
sps->crop_left =
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)) {
+ !(avctx->flags & AV_CODEC_FLAG_UNALIGNED)) {
crop_left &= ~(0x1F >> (sps->bit_depth_luma > 8));
- av_log(h->avctx, AV_LOG_WARNING,
+ av_log(avctx, AV_LOG_WARNING,
"Reducing left cropping to %d "
"chroma samples to preserve alignment.\n",
crop_left);
}
+ if (INT_MAX / step_x <= crop_left ||
+ INT_MAX / step_x - crop_left <= crop_right ||
+ 16 * sps->mb_width <= step_x * (crop_left + crop_right) ||
+ INT_MAX / step_y <= crop_top ||
+ INT_MAX / step_y - crop_top <= crop_bottom ||
+ 16 * sps->mb_height <= step_y * (crop_top + crop_bottom)) {
+ av_log(avctx, AV_LOG_WARNING, "Invalid crop parameters\n");
+ if (avctx->err_recognition & AV_EF_EXPLODE)
+ goto fail;
+ crop_left = crop_right = crop_top = crop_bottom = 0;
+ }
+
sps->crop_left = crop_left * step_x;
sps->crop_right = crop_right * step_x;
sps->crop_top = crop_top * step_y;
sps->crop = 0;
}
- sps->vui_parameters_present_flag = get_bits1(&h->gb);
+ sps->vui_parameters_present_flag = get_bits1(gb);
if (sps->vui_parameters_present_flag) {
- int ret = decode_vui_parameters(h, sps);
- if (ret < 0 && h->avctx->err_recognition & AV_EF_EXPLODE)
+ int ret = decode_vui_parameters(gb, avctx, sps);
+ if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE)
goto fail;
}
+ /* if the maximum delay is not stored in the SPS, derive it based on the
+ * level */
+ if (!sps->bitstream_restriction_flag) {
+ sps->num_reorder_frames = MAX_DELAYED_PIC_COUNT - 1;
+ for (i = 0; i < FF_ARRAY_ELEMS(level_max_dpb_mbs); i++) {
+ if (level_max_dpb_mbs[i][0] == sps->level_idc) {
+ sps->num_reorder_frames = FFMIN(level_max_dpb_mbs[i][1] / (sps->mb_width * sps->mb_height),
+ sps->num_reorder_frames);
+ break;
+ }
+ }
+ }
+
if (!sps->sar.den)
sps->sar.den = 1;
- if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
+ if (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\n",
+ av_log(avctx, AV_LOG_DEBUG,
+ "sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%u/%u/%u/%u %s %s %"PRId32"/%"PRId32"\n",
sps_id, sps->profile_idc, sps->level_idc,
sps->poc_type,
sps->ref_frame_count,
sps->timing_info_present_flag ? sps->num_units_in_tick : 0,
sps->timing_info_present_flag ? sps->time_scale : 0);
}
- sps->new = 1;
- av_free(h->sps_buffers[sps_id]);
- h->sps_buffers[sps_id] = sps;
- h->sps = *sps;
+ /* check if this is a repeat of an already parsed SPS, then keep the
+ * original one.
+ * otherwise drop all PPSes that depend on it */
+ if (ps->sps_list[sps_id] &&
+ !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
+ av_buffer_unref(&sps_buf);
+ } else {
+ remove_sps(ps, sps_id);
+ ps->sps_list[sps_id] = sps_buf;
+ }
return 0;
fail:
- av_free(sps);
- return -1;
+ av_buffer_unref(&sps_buf);
+ return AVERROR_INVALIDDATA;
+}
+
+static void init_dequant8_coeff_table(PPS *pps, const SPS *sps)
+{
+ int i, j, q, x;
+ const int max_qp = 51 + 6 * (sps->bit_depth_luma - 8);
+
+ for (i = 0; i < 6; i++) {
+ pps->dequant8_coeff[i] = pps->dequant8_buffer[i];
+ for (j = 0; j < i; j++)
+ if (!memcmp(pps->scaling_matrix8[j], pps->scaling_matrix8[i],
+ 64 * sizeof(uint8_t))) {
+ pps->dequant8_coeff[i] = pps->dequant8_buffer[j];
+ break;
+ }
+ if (j < i)
+ continue;
+
+ for (q = 0; q < max_qp + 1; q++) {
+ int shift = ff_h264_quant_div6[q];
+ int idx = ff_h264_quant_rem6[q];
+ for (x = 0; x < 64; x++)
+ pps->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] =
+ ((uint32_t)ff_h264_dequant8_coeff_init[idx][ff_h264_dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] *
+ pps->scaling_matrix8[i][x]) << shift;
+ }
+ }
+}
+
+static void init_dequant4_coeff_table(PPS *pps, const SPS *sps)
+{
+ int i, j, q, x;
+ const int max_qp = 51 + 6 * (sps->bit_depth_luma - 8);
+ for (i = 0; i < 6; i++) {
+ pps->dequant4_coeff[i] = pps->dequant4_buffer[i];
+ for (j = 0; j < i; j++)
+ if (!memcmp(pps->scaling_matrix4[j], pps->scaling_matrix4[i],
+ 16 * sizeof(uint8_t))) {
+ pps->dequant4_coeff[i] = pps->dequant4_buffer[j];
+ break;
+ }
+ if (j < i)
+ continue;
+
+ for (q = 0; q < max_qp + 1; q++) {
+ int shift = ff_h264_quant_div6[q] + 2;
+ int idx = ff_h264_quant_rem6[q];
+ for (x = 0; x < 16; x++)
+ pps->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] =
+ ((uint32_t)ff_h264_dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] *
+ pps->scaling_matrix4[i][x]) << shift;
+ }
+ }
+}
+
+static void init_dequant_tables(PPS *pps, const SPS *sps)
+{
+ int i, x;
+ init_dequant4_coeff_table(pps, sps);
+ if (pps->transform_8x8_mode)
+ init_dequant8_coeff_table(pps, sps);
+ if (sps->transform_bypass) {
+ for (i = 0; i < 6; i++)
+ for (x = 0; x < 16; x++)
+ pps->dequant4_coeff[i][0][x] = 1 << 6;
+ if (pps->transform_8x8_mode)
+ for (i = 0; i < 6; i++)
+ for (x = 0; x < 64; x++)
+ pps->dequant8_coeff[i][0][x] = 1 << 6;
+ }
}
static void build_qp_table(PPS *pps, int t, int index, const int depth)
ff_h264_chroma_qp[depth - 8][av_clip(i + index, 0, max_qp)];
}
-int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length)
+int ff_h264_decode_picture_parameter_set(GetBitContext *gb, AVCodecContext *avctx,
+ H264ParamSets *ps, int bit_length)
{
- unsigned int pps_id = get_ue_golomb(&h->gb);
+ AVBufferRef *pps_buf;
+ SPS *sps;
+ unsigned int pps_id = get_ue_golomb(gb);
PPS *pps;
- const int qp_bd_offset = 6 * (h->sps.bit_depth_luma - 8);
+ int qp_bd_offset;
int bits_left;
+ int ret;
if (pps_id >= MAX_PPS_COUNT) {
- av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id);
+ av_log(avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id);
return AVERROR_INVALIDDATA;
- } else if (h->sps.bit_depth_luma > 10) {
- av_log(h->avctx, AV_LOG_ERROR,
- "Unimplemented luma bit depth=%d (max=10)\n",
- h->sps.bit_depth_luma);
- return AVERROR_PATCHWELCOME;
}
- pps = av_mallocz(sizeof(PPS));
- if (!pps)
+ pps_buf = av_buffer_allocz(sizeof(*pps));
+ if (!pps_buf)
return AVERROR(ENOMEM);
- pps->sps_id = get_ue_golomb_31(&h->gb);
+ pps = (PPS*)pps_buf->data;
+
+ pps->sps_id = get_ue_golomb_31(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 %u out of range\n", pps->sps_id);
+ !ps->sps_list[pps->sps_id]) {
+ av_log(avctx, AV_LOG_ERROR, "sps_id %u out of range\n", pps->sps_id);
+ ret = AVERROR_INVALIDDATA;
goto fail;
}
+ sps = (SPS*)ps->sps_list[pps->sps_id]->data;
- 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 (sps->bit_depth_luma > 10) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Unimplemented luma bit depth=%d (max=10)\n",
+ sps->bit_depth_luma);
+ ret = AVERROR_PATCHWELCOME;
+ goto fail;
+ }
+
+ pps->cabac = get_bits1(gb);
+ pps->pic_order_present = get_bits1(gb);
+ pps->slice_group_count = get_ue_golomb(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");
+ pps->mb_slice_group_map_type = get_ue_golomb(gb);
+ av_log(avctx, AV_LOG_ERROR, "FMO not supported\n");
switch (pps->mb_slice_group_map_type) {
case 0:
#if 0
break;
}
}
- pps->ref_count[0] = get_ue_golomb(&h->gb) + 1;
- pps->ref_count[1] = get_ue_golomb(&h->gb) + 1;
+ pps->ref_count[0] = get_ue_golomb(gb) + 1;
+ pps->ref_count[1] = get_ue_golomb(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");
+ av_log(avctx, AV_LOG_ERROR, "reference overflow (pps)\n");
+ ret = AVERROR_INVALIDDATA;
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);
+ qp_bd_offset = 6 * (sps->bit_depth_luma - 8);
+
+ pps->weighted_pred = get_bits1(gb);
+ pps->weighted_bipred_idc = get_bits(gb, 2);
+ pps->init_qp = get_se_golomb(gb) + 26 + qp_bd_offset;
+ pps->init_qs = get_se_golomb(gb) + 26 + qp_bd_offset;
+ pps->chroma_qp_index_offset[0] = get_se_golomb(gb);
+ pps->deblocking_filter_parameters_present = get_bits1(gb);
+ pps->constrained_intra_pred = get_bits1(gb);
+ pps->redundant_pic_cnt_present = get_bits1(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,
+ memcpy(pps->scaling_matrix4, sps->scaling_matrix4,
sizeof(pps->scaling_matrix4));
- memcpy(pps->scaling_matrix8, h->sps_buffers[pps->sps_id]->scaling_matrix8,
+ memcpy(pps->scaling_matrix8, sps->scaling_matrix8,
sizeof(pps->scaling_matrix8));
- bits_left = bit_length - get_bits_count(&h->gb);
+ bits_left = bit_length - get_bits_count(gb);
if (bits_left && (bits_left > 8 ||
- show_bits(&h->gb, bits_left) != 1 << (bits_left - 1))) {
- pps->transform_8x8_mode = get_bits1(&h->gb);
- decode_scaling_matrices(h, h->sps_buffers[pps->sps_id], pps, 0,
+ show_bits(gb, bits_left) != 1 << (bits_left - 1))) {
+ pps->transform_8x8_mode = get_bits1(gb);
+ decode_scaling_matrices(gb, sps, pps, 0,
pps->scaling_matrix4, pps->scaling_matrix8);
// second_chroma_qp_index_offset
- pps->chroma_qp_index_offset[1] = get_se_golomb(&h->gb);
+ pps->chroma_qp_index_offset[1] = get_se_golomb(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],
- h->sps.bit_depth_luma);
+ sps->bit_depth_luma);
build_qp_table(pps, 1, pps->chroma_qp_index_offset[1],
- h->sps.bit_depth_luma);
+ sps->bit_depth_luma);
+
+ init_dequant_tables(pps, sps);
+
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",
+ if (avctx->debug & FF_DEBUG_PICT_INFO) {
+ av_log(avctx, AV_LOG_DEBUG,
+ "pps:%u sps:%u %s slice_groups:%d ref:%u/%u %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->transform_8x8_mode ? "8x8DCT" : "");
}
- av_free(h->pps_buffers[pps_id]);
- h->pps_buffers[pps_id] = pps;
+ remove_pps(ps, pps_id);
+ ps->pps_list[pps_id] = pps_buf;
+
return 0;
fail:
- av_free(pps);
- return -1;
+ av_buffer_unref(&pps_buf);
+ return ret;
}
projects / ffmpeg / blobdiff