mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-04 23:46:43 +00:00
1641 lines
50 KiB
C
1641 lines
50 KiB
C
/* GStreamer
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* Copyright (C) 2020 Intel Corporation
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* Author: He Junyan <junyan.he@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the0
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "gsth264bitwriter.h"
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#include <gst/codecparsers/nalutils.h>
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#include <gst/base/gstbitwriter.h>
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/******************************** Utils ********************************/
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#define SIGNED(val) (2 * ABS(val) - ((val) > 0))
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/* Write an unsigned integer Exp-Golomb-coded syntax element. i.e. ue(v) */
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static gboolean
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_bs_write_ue (GstBitWriter * bs, guint32 value)
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{
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guint32 size_in_bits = 0;
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guint32 tmp_value = ++value;
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while (tmp_value) {
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++size_in_bits;
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tmp_value >>= 1;
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}
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if (size_in_bits > 1
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&& !gst_bit_writer_put_bits_uint32 (bs, 0, size_in_bits - 1))
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return FALSE;
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if (!gst_bit_writer_put_bits_uint32 (bs, value, size_in_bits))
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return FALSE;
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return TRUE;
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}
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#define WRITE_BITS_UNCHECK(bw, val, nbits) \
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(nbits <= 8 ? gst_bit_writer_put_bits_uint8 (bw, val, nbits) : \
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(nbits <= 16 ? gst_bit_writer_put_bits_uint16 (bw, val, nbits) : \
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(nbits <= 32 ? gst_bit_writer_put_bits_uint32 (bw, val, nbits) : \
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FALSE)))
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#define WRITE_BITS(bw, val, nbits) \
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if (!WRITE_BITS_UNCHECK (bw, val, nbits)) { \
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g_warning ("Unsupported bit size: %u", nbits); \
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have_space = FALSE; \
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goto error; \
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}
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#define WRITE_UE_UNCHECK(bw, val) _bs_write_ue (bw, val)
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#ifdef WRITE_UE
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#undef WRITE_UE
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#endif
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#define WRITE_UE(bw, val) \
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if (!(have_space = WRITE_UE_UNCHECK (bw, val))) \
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goto error; \
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#define WRITE_UE_MAX(bw, val, max) \
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if ((guint32) val > (max) || !(have_space = WRITE_UE_UNCHECK (bw, val))) \
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goto error;
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#define WRITE_SE(bw, val) WRITE_UE (bw, SIGNED (val))
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#define WRITE_SE_RANGE(bw, val, min, max) \
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if (val > max || val < min || \
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!(have_space = WRITE_UE_UNCHECK (bw, SIGNED (val)))) \
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goto error;
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#define WRITE_BYTES_UNCHECK(bw, ptr, nbytes) \
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gst_bit_writer_put_bytes(bw, ptr, nbytes)
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#ifdef WRITE_BYTES
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#undef WRITE_BYTES
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#endif
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#define WRITE_BYTES(bw, ptr, nbytes) \
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if (!(have_space = WRITE_BYTES_UNCHECK (bw, ptr, nbytes))) \
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goto error;
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/***************************** End of Utils ****************************/
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/**** Default scaling_lists according to Table 7-2 *****/
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static const guint8 default_4x4_intra[16] = {
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6, 13, 13, 20, 20, 20, 28, 28, 28, 28, 32, 32,
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32, 37, 37, 42
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};
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static const guint8 default_4x4_inter[16] = {
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10, 14, 14, 20, 20, 20, 24, 24, 24, 24, 27, 27,
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27, 30, 30, 34
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};
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static const guint8 default_8x8_intra[64] = {
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6, 10, 10, 13, 11, 13, 16, 16, 16, 16, 18, 18,
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18, 18, 18, 23, 23, 23, 23, 23, 23, 25, 25, 25, 25, 25, 25, 25, 27, 27, 27,
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27, 27, 27, 27, 27, 29, 29, 29, 29, 29, 29, 29, 31, 31, 31, 31, 31, 31, 33,
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33, 33, 33, 33, 36, 36, 36, 36, 38, 38, 38, 40, 40, 42
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};
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static const guint8 default_8x8_inter[64] = {
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9, 13, 13, 15, 13, 15, 17, 17, 17, 17, 19, 19,
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19, 19, 19, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 24, 24, 24,
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24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 27, 27, 27, 27, 27, 27, 28,
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28, 28, 28, 28, 30, 30, 30, 30, 32, 32, 32, 33, 33, 35
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};
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static gboolean
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_h264_bit_writer_scaling_list (GstBitWriter * bw, gboolean * space,
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const guint8 scaling_lists_4x4[6][16],
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const guint8 scaling_lists_8x8[6][64], const guint8 fallback_4x4_inter[16],
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const guint8 fallback_4x4_intra[16], const guint8 fallback_8x8_inter[64],
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const guint8 fallback_8x8_intra[64], guint8 n_lists)
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{
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gboolean have_space = TRUE;
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guint i, j;
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const guint8 *default_lists[12] = {
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fallback_4x4_intra, fallback_4x4_intra, fallback_4x4_intra,
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fallback_4x4_inter, fallback_4x4_inter, fallback_4x4_inter,
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fallback_8x8_intra, fallback_8x8_inter,
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fallback_8x8_intra, fallback_8x8_inter,
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fallback_8x8_intra, fallback_8x8_inter
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};
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GST_DEBUG ("writing scaling lists");
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for (i = 0; i < 12; i++) {
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if (i < n_lists) {
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guint8 scaling_list_present_flag = FALSE;
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const guint8 *scaling_list;
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guint size;
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if (i < 6) {
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scaling_list = scaling_lists_4x4[i];
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size = 16;
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} else {
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scaling_list = scaling_lists_8x8[i - 6];
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size = 64;
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}
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if (memcmp (scaling_list, default_lists[i], size))
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scaling_list_present_flag = TRUE;
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WRITE_BITS (bw, scaling_list_present_flag, 1);
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if (scaling_list_present_flag) {
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guint8 last_scale, next_scale;
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gint8 delta_scale;
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for (j = 0; j < size; j++) {
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last_scale = next_scale = 8;
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for (j = 0; j < size; j++) {
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if (next_scale != 0) {
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delta_scale = (gint8) (scaling_list[j] - last_scale);
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WRITE_SE (bw, delta_scale);
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next_scale = scaling_list[j];
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}
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last_scale = (next_scale == 0) ? last_scale : next_scale;
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}
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}
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}
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}
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}
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*space = TRUE;
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return TRUE;
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error:
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GST_WARNING ("error to write scaling lists");
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*space = have_space;
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return FALSE;
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}
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static gboolean
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_h264_bit_writer_hrd_parameters (const GstH264HRDParams * hrd,
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GstBitWriter * bw, gboolean * space)
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{
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gboolean have_space = TRUE;
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guint sched_sel_idx;
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GST_DEBUG ("writing \"HRD Parameters\"");
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WRITE_UE_MAX (bw, hrd->cpb_cnt_minus1, 31);
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WRITE_BITS (bw, hrd->bit_rate_scale, 4);
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WRITE_BITS (bw, hrd->cpb_size_scale, 4);
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for (sched_sel_idx = 0; sched_sel_idx <= hrd->cpb_cnt_minus1; sched_sel_idx++) {
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WRITE_UE (bw, hrd->bit_rate_value_minus1[sched_sel_idx]);
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WRITE_UE (bw, hrd->cpb_size_value_minus1[sched_sel_idx]);
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WRITE_BITS (bw, hrd->cbr_flag[sched_sel_idx], 1);
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}
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WRITE_BITS (bw, hrd->initial_cpb_removal_delay_length_minus1, 5);
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WRITE_BITS (bw, hrd->cpb_removal_delay_length_minus1, 5);
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WRITE_BITS (bw, hrd->dpb_output_delay_length_minus1, 5);
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WRITE_BITS (bw, hrd->time_offset_length, 5);
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*space = TRUE;
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return TRUE;
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error:
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GST_WARNING ("error to write \"HRD Parameters\"");
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*space = have_space;
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return FALSE;
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}
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#define EXTENDED_SAR 255
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static gboolean
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_h264_bit_writer_vui_parameters (const GstH264SPS * sps, GstBitWriter * bw,
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gboolean * space)
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{
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gboolean have_space = TRUE;
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const GstH264VUIParams *vui = &sps->vui_parameters;
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GST_DEBUG ("writing \"VUI Parameters\"");
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WRITE_BITS (bw, vui->aspect_ratio_info_present_flag, 1);
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if (vui->aspect_ratio_info_present_flag) {
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WRITE_BITS (bw, vui->aspect_ratio_idc, 8);
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if (vui->aspect_ratio_idc == EXTENDED_SAR) {
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WRITE_BITS (bw, vui->sar_width, 16);
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WRITE_BITS (bw, vui->sar_height, 16);
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}
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}
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WRITE_BITS (bw, vui->overscan_info_present_flag, 1);
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if (vui->overscan_info_present_flag)
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WRITE_BITS (bw, vui->overscan_appropriate_flag, 1);
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WRITE_BITS (bw, vui->video_signal_type_present_flag, 1);
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if (vui->video_signal_type_present_flag) {
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WRITE_BITS (bw, vui->video_format, 3);
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WRITE_BITS (bw, vui->video_full_range_flag, 1);
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WRITE_BITS (bw, vui->colour_description_present_flag, 1);
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if (vui->colour_description_present_flag) {
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WRITE_BITS (bw, vui->colour_primaries, 8);
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WRITE_BITS (bw, vui->transfer_characteristics, 8);
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WRITE_BITS (bw, vui->matrix_coefficients, 8);
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}
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}
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WRITE_BITS (bw, vui->chroma_loc_info_present_flag, 1);
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if (vui->chroma_loc_info_present_flag) {
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WRITE_UE_MAX (bw, vui->chroma_sample_loc_type_top_field, 5);
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WRITE_UE_MAX (bw, vui->chroma_sample_loc_type_bottom_field, 5);
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}
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WRITE_BITS (bw, vui->timing_info_present_flag, 1);
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if (vui->timing_info_present_flag) {
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WRITE_BITS (bw, vui->num_units_in_tick, 32);
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if (vui->num_units_in_tick == 0)
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GST_WARNING ("num_units_in_tick = 0 write to stream "
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"(incompliant to H.264 E.2.1).");
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WRITE_BITS (bw, vui->time_scale, 32);
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if (vui->time_scale == 0)
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GST_WARNING ("time_scale = 0 write to stream "
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"(incompliant to H.264 E.2.1).");
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WRITE_BITS (bw, vui->fixed_frame_rate_flag, 1);
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}
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WRITE_BITS (bw, vui->nal_hrd_parameters_present_flag, 1);
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if (vui->nal_hrd_parameters_present_flag) {
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if (!_h264_bit_writer_hrd_parameters (&vui->nal_hrd_parameters, bw,
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&have_space))
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goto error;
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}
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WRITE_BITS (bw, vui->vcl_hrd_parameters_present_flag, 1);
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if (vui->vcl_hrd_parameters_present_flag) {
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if (!_h264_bit_writer_hrd_parameters (&vui->vcl_hrd_parameters, bw,
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&have_space))
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goto error;
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}
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if (vui->nal_hrd_parameters_present_flag ||
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vui->vcl_hrd_parameters_present_flag)
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WRITE_BITS (bw, vui->low_delay_hrd_flag, 1);
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WRITE_BITS (bw, vui->pic_struct_present_flag, 1);
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WRITE_BITS (bw, vui->bitstream_restriction_flag, 1);
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if (vui->bitstream_restriction_flag) {
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WRITE_BITS (bw, vui->motion_vectors_over_pic_boundaries_flag, 1);
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WRITE_UE (bw, vui->max_bytes_per_pic_denom);
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WRITE_UE_MAX (bw, vui->max_bits_per_mb_denom, 16);
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WRITE_UE_MAX (bw, vui->log2_max_mv_length_horizontal, 16);
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WRITE_UE_MAX (bw, vui->log2_max_mv_length_vertical, 16);
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WRITE_UE (bw, vui->num_reorder_frames);
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WRITE_UE (bw, vui->max_dec_frame_buffering);
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}
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*space = TRUE;
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return TRUE;
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error:
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GST_WARNING ("error to write \"VUI Parameters\"");
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*space = have_space;
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return FALSE;
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}
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static gboolean
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_h264_bit_writer_sps (const GstH264SPS * sps, GstBitWriter * bw,
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gboolean * space)
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{
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gboolean have_space = TRUE;
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GST_DEBUG ("writing SPS");
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WRITE_BITS (bw, sps->profile_idc, 8);
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WRITE_BITS (bw, sps->constraint_set0_flag, 1);
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WRITE_BITS (bw, sps->constraint_set1_flag, 1);
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WRITE_BITS (bw, sps->constraint_set2_flag, 1);
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WRITE_BITS (bw, sps->constraint_set3_flag, 1);
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WRITE_BITS (bw, sps->constraint_set4_flag, 1);
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WRITE_BITS (bw, sps->constraint_set5_flag, 1);
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/* reserved_zero_2bits */
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WRITE_BITS (bw, 0, 2);
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WRITE_BITS (bw, sps->level_idc, 8);
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WRITE_UE_MAX (bw, sps->id, GST_H264_MAX_SPS_COUNT - 1);
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if (sps->profile_idc == 100 || sps->profile_idc == 110 ||
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sps->profile_idc == 122 || sps->profile_idc == 244 ||
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sps->profile_idc == 44 || sps->profile_idc == 83 ||
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sps->profile_idc == 86 || sps->profile_idc == 118 ||
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sps->profile_idc == 128 || sps->profile_idc == 138 ||
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sps->profile_idc == 139 || sps->profile_idc == 134 ||
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sps->profile_idc == 135) {
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WRITE_UE_MAX (bw, sps->chroma_format_idc, 3);
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if (sps->chroma_format_idc == 3)
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WRITE_BITS (bw, sps->separate_colour_plane_flag, 1);
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WRITE_UE_MAX (bw, sps->bit_depth_luma_minus8, 6);
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WRITE_UE_MAX (bw, sps->bit_depth_chroma_minus8, 6);
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WRITE_BITS (bw, sps->qpprime_y_zero_transform_bypass_flag, 1);
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WRITE_BITS (bw, sps->scaling_matrix_present_flag, 1);
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if (sps->scaling_matrix_present_flag) {
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guint8 n_lists;
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|
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n_lists = (sps->chroma_format_idc != 3) ? 8 : 12;
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if (!_h264_bit_writer_scaling_list (bw, &have_space,
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sps->scaling_lists_4x4, sps->scaling_lists_8x8,
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default_4x4_inter, default_4x4_intra,
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default_8x8_inter, default_8x8_intra, n_lists))
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goto error;
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}
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}
|
|
|
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WRITE_UE_MAX (bw, sps->log2_max_frame_num_minus4, 12);
|
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|
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WRITE_UE_MAX (bw, sps->pic_order_cnt_type, 2);
|
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if (sps->pic_order_cnt_type == 0) {
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WRITE_UE_MAX (bw, sps->log2_max_pic_order_cnt_lsb_minus4, 12);
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} else if (sps->pic_order_cnt_type == 1) {
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guint i;
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|
|
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WRITE_BITS (bw, sps->delta_pic_order_always_zero_flag, 1);
|
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WRITE_SE (bw, sps->offset_for_non_ref_pic);
|
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WRITE_SE (bw, sps->offset_for_top_to_bottom_field);
|
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WRITE_UE_MAX (bw, sps->num_ref_frames_in_pic_order_cnt_cycle, 255);
|
|
|
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for (i = 0; i < sps->num_ref_frames_in_pic_order_cnt_cycle; i++)
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WRITE_SE (bw, sps->offset_for_ref_frame[i]);
|
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}
|
|
|
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WRITE_UE (bw, sps->num_ref_frames);
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WRITE_BITS (bw, sps->gaps_in_frame_num_value_allowed_flag, 1);
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WRITE_UE (bw, sps->pic_width_in_mbs_minus1);
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WRITE_UE (bw, sps->pic_height_in_map_units_minus1);
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WRITE_BITS (bw, sps->frame_mbs_only_flag, 1);
|
|
|
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if (!sps->frame_mbs_only_flag)
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WRITE_BITS (bw, sps->mb_adaptive_frame_field_flag, 1);
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|
|
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WRITE_BITS (bw, sps->direct_8x8_inference_flag, 1);
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WRITE_BITS (bw, sps->frame_cropping_flag, 1);
|
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if (sps->frame_cropping_flag) {
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WRITE_UE (bw, sps->frame_crop_left_offset);
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WRITE_UE (bw, sps->frame_crop_right_offset);
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WRITE_UE (bw, sps->frame_crop_top_offset);
|
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WRITE_UE (bw, sps->frame_crop_bottom_offset);
|
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}
|
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|
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WRITE_BITS (bw, sps->vui_parameters_present_flag, 1);
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if (sps->vui_parameters_present_flag)
|
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if (!_h264_bit_writer_vui_parameters (sps, bw, &have_space))
|
|
goto error;
|
|
|
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*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("error to write sps");
|
|
|
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*space = have_space;
|
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return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_h264_bit_writer_sps:
|
|
* @sps: the sps of #GstH264SPS to write
|
|
* @start_code: whether adding the nal start code
|
|
* @data: (out): the bit stream generated by the sps
|
|
* @size: (inout): the size in bytes of the input and output
|
|
*
|
|
* Generating the according h264 bit stream by providing the sps.
|
|
*
|
|
* Returns: a #GstH264BitWriterResult
|
|
*
|
|
* Since: 1.22
|
|
**/
|
|
GstH264BitWriterResult
|
|
gst_h264_bit_writer_sps (const GstH264SPS * sps, gboolean start_code,
|
|
guint8 * data, guint * size)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
GstBitWriter bw;
|
|
|
|
g_return_val_if_fail (sps != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (data != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (size != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (*size > 0, GST_H264_BIT_WRITER_ERROR);
|
|
|
|
gst_bit_writer_init_with_data (&bw, data, *size, FALSE);
|
|
|
|
if (start_code)
|
|
WRITE_BITS (&bw, 0x00000001, 32);
|
|
|
|
/* nal header */
|
|
/* forbidden_zero_bit */
|
|
WRITE_BITS (&bw, 0, 1);
|
|
/* nal_ref_idc */
|
|
WRITE_BITS (&bw, 1, 2);
|
|
/* nal_unit_type */
|
|
WRITE_BITS (&bw, GST_H264_NAL_SPS, 5);
|
|
|
|
if (!_h264_bit_writer_sps (sps, &bw, &have_space))
|
|
goto error;
|
|
|
|
/* Add trailings. */
|
|
WRITE_BITS (&bw, 1, 1);
|
|
if (!gst_bit_writer_align_bytes (&bw, 0)) {
|
|
have_space = FALSE;
|
|
goto error;
|
|
}
|
|
|
|
*size = (gst_bit_writer_get_size (&bw)) / 8;
|
|
gst_bit_writer_reset (&bw);
|
|
|
|
return GST_H264_BIT_WRITER_OK;
|
|
|
|
error:
|
|
gst_bit_writer_reset (&bw);
|
|
*size = 0;
|
|
|
|
return have_space ? GST_H264_BIT_WRITER_INVALID_DATA :
|
|
GST_H264_BIT_WRITER_NO_MORE_SPACE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_pps (const GstH264PPS * pps, GstBitWriter * bw,
|
|
gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
gint qp_bd_offset;
|
|
|
|
GST_DEBUG ("writing PPS");
|
|
|
|
qp_bd_offset = 6 * (pps->sequence->bit_depth_luma_minus8 +
|
|
pps->sequence->separate_colour_plane_flag);
|
|
|
|
WRITE_UE_MAX (bw, pps->id, GST_H264_MAX_PPS_COUNT - 1);
|
|
WRITE_UE_MAX (bw, pps->sequence->id, GST_H264_MAX_SPS_COUNT - 1);
|
|
|
|
WRITE_BITS (bw, pps->entropy_coding_mode_flag, 1);
|
|
WRITE_BITS (bw, pps->pic_order_present_flag, 1);
|
|
|
|
WRITE_UE_MAX (bw, pps->num_slice_groups_minus1, 7);
|
|
if (pps->num_slice_groups_minus1 > 0) {
|
|
WRITE_UE_MAX (bw, pps->slice_group_map_type, 6);
|
|
|
|
if (pps->slice_group_map_type == 0) {
|
|
gint i;
|
|
|
|
for (i = 0; i <= pps->num_slice_groups_minus1; i++)
|
|
WRITE_UE (bw, pps->run_length_minus1[i]);
|
|
} else if (pps->slice_group_map_type == 2) {
|
|
gint i;
|
|
|
|
for (i = 0; i < pps->num_slice_groups_minus1; i++) {
|
|
WRITE_UE (bw, pps->top_left[i]);
|
|
WRITE_UE (bw, pps->bottom_right[i]);
|
|
}
|
|
} else if (pps->slice_group_map_type >= 3 && pps->slice_group_map_type <= 5) {
|
|
WRITE_BITS (bw, pps->slice_group_change_direction_flag, 1);
|
|
WRITE_UE (bw, pps->slice_group_change_rate_minus1);
|
|
} else if (pps->slice_group_map_type == 6) {
|
|
gint bits;
|
|
gint i;
|
|
|
|
WRITE_UE (bw, pps->pic_size_in_map_units_minus1);
|
|
bits = g_bit_storage (pps->num_slice_groups_minus1);
|
|
|
|
g_assert (pps->slice_group_id);
|
|
for (i = 0; i <= pps->pic_size_in_map_units_minus1; i++)
|
|
WRITE_BITS (bw, pps->slice_group_id[i], bits);
|
|
}
|
|
}
|
|
|
|
WRITE_UE_MAX (bw, pps->num_ref_idx_l0_active_minus1, 31);
|
|
WRITE_UE_MAX (bw, pps->num_ref_idx_l1_active_minus1, 31);
|
|
WRITE_BITS (bw, pps->weighted_pred_flag, 1);
|
|
WRITE_BITS (bw, pps->weighted_bipred_idc, 2);
|
|
WRITE_SE_RANGE (bw, pps->pic_init_qp_minus26, -(26 + qp_bd_offset), 25);
|
|
WRITE_SE_RANGE (bw, pps->pic_init_qs_minus26, -26, 25);
|
|
WRITE_SE_RANGE (bw, pps->chroma_qp_index_offset, -12, 12);
|
|
|
|
WRITE_BITS (bw, pps->deblocking_filter_control_present_flag, 1);
|
|
WRITE_BITS (bw, pps->constrained_intra_pred_flag, 1);
|
|
WRITE_BITS (bw, pps->redundant_pic_cnt_present_flag, 1);
|
|
|
|
/* A.2.1 Baseline profile, A.2.2 Main profile and
|
|
A.2.3 Extended profile:
|
|
The syntax elements transform_8x8_mode_flag,
|
|
pic_scaling_matrix_present_flag, second_chroma_qp_index_offset
|
|
shall not be present in picture parameter sets. */
|
|
if (pps->sequence->profile_idc == 66 ||
|
|
pps->sequence->profile_idc == 77 || pps->sequence->profile_idc == 88)
|
|
return TRUE;
|
|
|
|
WRITE_BITS (bw, pps->transform_8x8_mode_flag, 1);
|
|
|
|
WRITE_BITS (bw, pps->pic_scaling_matrix_present_flag, 1);
|
|
|
|
if (pps->pic_scaling_matrix_present_flag) {
|
|
guint8 n_lists;
|
|
|
|
n_lists = 6 + ((pps->sequence->chroma_format_idc != 3) ? 2 : 6) *
|
|
pps->transform_8x8_mode_flag;
|
|
|
|
if (pps->sequence->scaling_matrix_present_flag) {
|
|
if (!_h264_bit_writer_scaling_list (bw, &have_space,
|
|
pps->scaling_lists_4x4, pps->scaling_lists_8x8,
|
|
pps->sequence->scaling_lists_4x4[3],
|
|
pps->sequence->scaling_lists_4x4[0],
|
|
pps->sequence->scaling_lists_8x8[3],
|
|
pps->sequence->scaling_lists_8x8[0], n_lists))
|
|
goto error;
|
|
} else {
|
|
if (!_h264_bit_writer_scaling_list (bw, &have_space,
|
|
pps->scaling_lists_4x4, pps->scaling_lists_8x8,
|
|
default_4x4_inter, default_4x4_intra,
|
|
default_8x8_inter, default_8x8_intra, n_lists))
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
WRITE_SE_RANGE (bw, pps->second_chroma_qp_index_offset, -12, 12);
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("error to write pps");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_h264_bit_writer_pps:
|
|
* @pps: the pps of #GstH264PPS to write
|
|
* @start_code: whether adding the nal start code
|
|
* @data: (out): the bit stream generated by the pps
|
|
* @size: (inout): the size in bytes of the input and output
|
|
*
|
|
* Generating the according h264 bit stream by providing the pps.
|
|
*
|
|
* Returns: a #GstH264BitWriterResult
|
|
*
|
|
* Since: 1.22
|
|
**/
|
|
GstH264BitWriterResult
|
|
gst_h264_bit_writer_pps (const GstH264PPS * pps, gboolean start_code,
|
|
guint8 * data, guint * size)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
GstBitWriter bw;
|
|
|
|
g_return_val_if_fail (pps != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (pps->sequence != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (data != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (size != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (*size > 0, GST_H264_BIT_WRITER_ERROR);
|
|
|
|
gst_bit_writer_init_with_data (&bw, data, *size, FALSE);
|
|
|
|
if (start_code)
|
|
WRITE_BITS (&bw, 0x00000001, 32);
|
|
|
|
/* nal header */
|
|
/* forbidden_zero_bit */
|
|
WRITE_BITS (&bw, 0, 1);
|
|
/* nal_ref_idc */
|
|
WRITE_BITS (&bw, 1, 2);
|
|
/* nal_unit_type */
|
|
WRITE_BITS (&bw, GST_H264_NAL_PPS, 5);
|
|
|
|
if (!_h264_bit_writer_pps (pps, &bw, &have_space))
|
|
goto error;
|
|
|
|
/* Add trailings. */
|
|
WRITE_BITS (&bw, 1, 1);
|
|
if (!gst_bit_writer_align_bytes (&bw, 0)) {
|
|
have_space = FALSE;
|
|
goto error;
|
|
}
|
|
|
|
*size = (gst_bit_writer_get_size (&bw)) / 8;
|
|
gst_bit_writer_reset (&bw);
|
|
return GST_H264_BIT_WRITER_OK;
|
|
|
|
error:
|
|
gst_bit_writer_reset (&bw);
|
|
*size = 0;
|
|
|
|
return have_space ? GST_H264_BIT_WRITER_INVALID_DATA :
|
|
GST_H264_BIT_WRITER_NO_MORE_SPACE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_slice_bit_writer_ref_pic_list_modification_1 (const GstH264SliceHdr *
|
|
slice, guint list, gboolean is_mvc, GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
const GstH264RefPicListModification *entries;
|
|
guint8 ref_pic_list_modification_flag = 0;
|
|
guint i;
|
|
|
|
if (list == 0) {
|
|
entries = slice->ref_pic_list_modification_l0;
|
|
ref_pic_list_modification_flag = slice->ref_pic_list_modification_flag_l0;
|
|
} else {
|
|
entries = slice->ref_pic_list_modification_l1;
|
|
ref_pic_list_modification_flag = slice->ref_pic_list_modification_flag_l1;
|
|
}
|
|
|
|
WRITE_BITS (bw, ref_pic_list_modification_flag, 1);
|
|
if (ref_pic_list_modification_flag) {
|
|
i = 0;
|
|
do {
|
|
g_assert (i < 32);
|
|
|
|
WRITE_UE (bw, entries[i].modification_of_pic_nums_idc);
|
|
if (entries[i].modification_of_pic_nums_idc == 0 ||
|
|
entries[i].modification_of_pic_nums_idc == 1) {
|
|
WRITE_UE_MAX (bw, entries[i].value.abs_diff_pic_num_minus1,
|
|
slice->max_pic_num - 1);
|
|
} else if (entries[i].modification_of_pic_nums_idc == 2) {
|
|
WRITE_UE (bw, entries[i].value.long_term_pic_num);
|
|
} else if (is_mvc && (entries[i].modification_of_pic_nums_idc == 4 ||
|
|
entries[i].modification_of_pic_nums_idc == 5)) {
|
|
WRITE_UE (bw, entries[i].value.abs_diff_view_idx_minus1);
|
|
}
|
|
} while (entries[i++].modification_of_pic_nums_idc != 3);
|
|
}
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("error to write \"Reference picture list %u modification\"",
|
|
list);
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_slice_bit_writer_ref_pic_list_modification (const GstH264SliceHdr *
|
|
slice, gboolean is_mvc, GstBitWriter * bw, gboolean * space)
|
|
{
|
|
if (!GST_H264_IS_I_SLICE (slice) && !GST_H264_IS_SI_SLICE (slice)) {
|
|
if (!_h264_slice_bit_writer_ref_pic_list_modification_1 (slice, 0,
|
|
is_mvc, bw, space))
|
|
return FALSE;
|
|
}
|
|
|
|
if (GST_H264_IS_B_SLICE (slice)) {
|
|
if (!_h264_slice_bit_writer_ref_pic_list_modification_1 (slice, 1,
|
|
is_mvc, bw, space))
|
|
return FALSE;
|
|
}
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_slice_bit_writer_pred_weight_table (const GstH264SliceHdr * slice,
|
|
guint8 chroma_array_type, GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
const GstH264PredWeightTable *p;
|
|
gint i;
|
|
gint16 default_luma_weight, default_chroma_weight;
|
|
|
|
GST_DEBUG ("writing \"Prediction weight table\"");
|
|
|
|
p = &slice->pred_weight_table;
|
|
default_luma_weight = 1 << p->luma_log2_weight_denom;
|
|
default_chroma_weight = 1 << p->chroma_log2_weight_denom;
|
|
|
|
WRITE_UE_MAX (bw, p->luma_log2_weight_denom, 7);
|
|
|
|
if (chroma_array_type != 0)
|
|
WRITE_UE_MAX (bw, p->chroma_log2_weight_denom, 7);
|
|
|
|
for (i = 0; i <= slice->num_ref_idx_l0_active_minus1; i++) {
|
|
guint8 luma_weight_l0_flag = 0;
|
|
|
|
if (p->luma_weight_l0[i] != default_luma_weight ||
|
|
p->luma_offset_l0[i] != 0)
|
|
luma_weight_l0_flag = 1;
|
|
|
|
WRITE_BITS (bw, luma_weight_l0_flag, 1);
|
|
if (luma_weight_l0_flag) {
|
|
WRITE_SE_RANGE (bw, p->luma_weight_l0[i], -128, 127);
|
|
WRITE_SE_RANGE (bw, p->luma_offset_l0[i], -128, 127);
|
|
}
|
|
if (chroma_array_type != 0) {
|
|
guint8 chroma_weight_l0_flag = 0;
|
|
gint j;
|
|
|
|
for (j = 0; j < 2; j++) {
|
|
if (p->chroma_weight_l0[i][j] != default_chroma_weight ||
|
|
p->chroma_offset_l0[i][j] != 0)
|
|
chroma_weight_l0_flag = 1;
|
|
}
|
|
|
|
WRITE_BITS (bw, chroma_weight_l0_flag, 1);
|
|
if (chroma_weight_l0_flag) {
|
|
for (j = 0; j < 2; j++) {
|
|
WRITE_SE_RANGE (bw, p->chroma_weight_l0[i][j], -128, 127);
|
|
WRITE_SE_RANGE (bw, p->chroma_offset_l0[i][j], -128, 127);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (GST_H264_IS_B_SLICE (slice)) {
|
|
for (i = 0; i <= slice->num_ref_idx_l1_active_minus1; i++) {
|
|
guint8 luma_weight_l1_flag = 0;
|
|
|
|
if (p->luma_weight_l1[i] != default_luma_weight ||
|
|
p->luma_offset_l1[i] != 0)
|
|
luma_weight_l1_flag = 1;
|
|
|
|
WRITE_BITS (bw, luma_weight_l1_flag, 1);
|
|
if (luma_weight_l1_flag) {
|
|
WRITE_SE_RANGE (bw, p->luma_weight_l1[i], -128, 127);
|
|
WRITE_SE_RANGE (bw, p->luma_offset_l1[i], -128, 127);
|
|
}
|
|
if (chroma_array_type != 0) {
|
|
guint8 chroma_weight_l1_flag = 0;
|
|
gint j;
|
|
|
|
for (j = 0; j < 2; j++) {
|
|
if (p->chroma_weight_l1[i][j] != default_chroma_weight ||
|
|
p->chroma_offset_l1[i][j] != 0)
|
|
chroma_weight_l1_flag = 1;
|
|
}
|
|
|
|
WRITE_BITS (bw, chroma_weight_l1_flag, 1);
|
|
if (chroma_weight_l1_flag) {
|
|
for (j = 0; j < 2; j++) {
|
|
WRITE_SE_RANGE (bw, p->chroma_weight_l1[i][j], -128, 127);
|
|
WRITE_SE_RANGE (bw, p->chroma_offset_l1[i][j], -128, 127);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("error to write \"Prediction weight table\"");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_slice_dec_ref_pic_marking (const GstH264SliceHdr * slice,
|
|
guint32 nal_type, GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
|
|
GST_DEBUG ("writing \"Dec Ref Pic Marking\"");
|
|
|
|
if (nal_type == GST_H264_NAL_SLICE_IDR) {
|
|
WRITE_BITS (bw, slice->dec_ref_pic_marking.no_output_of_prior_pics_flag, 1);
|
|
WRITE_BITS (bw, slice->dec_ref_pic_marking.long_term_reference_flag, 1);
|
|
} else {
|
|
WRITE_BITS (bw,
|
|
slice->dec_ref_pic_marking.adaptive_ref_pic_marking_mode_flag, 1);
|
|
|
|
if (slice->dec_ref_pic_marking.adaptive_ref_pic_marking_mode_flag) {
|
|
const GstH264RefPicMarking *refpicmarking;
|
|
guint i;
|
|
|
|
for (i = 0; i < slice->dec_ref_pic_marking.n_ref_pic_marking; i++) {
|
|
refpicmarking = &slice->dec_ref_pic_marking.ref_pic_marking[i];
|
|
|
|
WRITE_UE_MAX (bw,
|
|
refpicmarking->memory_management_control_operation, 6);
|
|
|
|
if (refpicmarking->memory_management_control_operation == 0)
|
|
break;
|
|
|
|
if (refpicmarking->memory_management_control_operation == 1
|
|
|| refpicmarking->memory_management_control_operation == 3)
|
|
WRITE_UE (bw, refpicmarking->difference_of_pic_nums_minus1);
|
|
|
|
if (refpicmarking->memory_management_control_operation == 2)
|
|
WRITE_UE (bw, refpicmarking->long_term_pic_num);
|
|
|
|
if (refpicmarking->memory_management_control_operation == 3
|
|
|| refpicmarking->memory_management_control_operation == 6)
|
|
WRITE_UE (bw, refpicmarking->long_term_frame_idx);
|
|
|
|
if (refpicmarking->memory_management_control_operation == 4)
|
|
WRITE_UE (bw, refpicmarking->max_long_term_frame_idx_plus1);
|
|
}
|
|
}
|
|
}
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("error to write \"Dec Ref Pic Marking\"");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_slice_hdr (const GstH264SliceHdr * slice, guint32 nal_type,
|
|
guint32 ext_type, gboolean is_ref, GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
|
|
GST_DEBUG ("writing slice header");
|
|
|
|
WRITE_UE (bw, slice->first_mb_in_slice);
|
|
WRITE_UE (bw, slice->type);
|
|
|
|
WRITE_UE_MAX (bw, slice->pps->id, GST_H264_MAX_PPS_COUNT - 1);
|
|
|
|
if (slice->pps->sequence->separate_colour_plane_flag)
|
|
WRITE_BITS (bw, slice->colour_plane_id, 2);
|
|
|
|
WRITE_BITS (bw, slice->frame_num,
|
|
slice->pps->sequence->log2_max_frame_num_minus4 + 4);
|
|
|
|
if (!slice->pps->sequence->frame_mbs_only_flag) {
|
|
WRITE_BITS (bw, slice->field_pic_flag, 1);
|
|
if (slice->field_pic_flag)
|
|
WRITE_BITS (bw, slice->bottom_field_flag, 1);
|
|
}
|
|
|
|
if (nal_type == GST_H264_NAL_SLICE_IDR)
|
|
WRITE_UE_MAX (bw, slice->idr_pic_id, G_MAXUINT16);
|
|
|
|
if (slice->pps->sequence->pic_order_cnt_type == 0) {
|
|
WRITE_BITS (bw, slice->pic_order_cnt_lsb,
|
|
slice->pps->sequence->log2_max_pic_order_cnt_lsb_minus4 + 4);
|
|
|
|
if (slice->pps->pic_order_present_flag && !slice->field_pic_flag)
|
|
WRITE_SE (bw, slice->delta_pic_order_cnt_bottom);
|
|
}
|
|
|
|
if (slice->pps->sequence->pic_order_cnt_type == 1
|
|
&& !slice->pps->sequence->delta_pic_order_always_zero_flag) {
|
|
WRITE_SE (bw, slice->delta_pic_order_cnt[0]);
|
|
if (slice->pps->pic_order_present_flag && !slice->field_pic_flag)
|
|
WRITE_SE (bw, slice->delta_pic_order_cnt[1]);
|
|
}
|
|
|
|
if (slice->pps->redundant_pic_cnt_present_flag)
|
|
WRITE_UE_MAX (bw, slice->redundant_pic_cnt, G_MAXINT8);
|
|
|
|
if (GST_H264_IS_B_SLICE (slice))
|
|
WRITE_BITS (bw, slice->direct_spatial_mv_pred_flag, 1);
|
|
|
|
if (GST_H264_IS_P_SLICE (slice) || GST_H264_IS_SP_SLICE (slice) ||
|
|
GST_H264_IS_B_SLICE (slice)) {
|
|
WRITE_BITS (bw, slice->num_ref_idx_active_override_flag, 1);
|
|
if (slice->num_ref_idx_active_override_flag) {
|
|
WRITE_UE_MAX (bw, slice->num_ref_idx_l0_active_minus1, 31);
|
|
|
|
if (GST_H264_IS_B_SLICE (slice))
|
|
WRITE_UE_MAX (bw, slice->num_ref_idx_l1_active_minus1, 31);
|
|
}
|
|
}
|
|
|
|
if (!_h264_slice_bit_writer_ref_pic_list_modification (slice,
|
|
ext_type == GST_H264_NAL_EXTENSION_MVC, bw, &have_space))
|
|
goto error;
|
|
|
|
if ((slice->pps->weighted_pred_flag && (GST_H264_IS_P_SLICE (slice)
|
|
|| GST_H264_IS_SP_SLICE (slice)))
|
|
|| (slice->pps->weighted_bipred_idc == 1 && GST_H264_IS_B_SLICE (slice))) {
|
|
if (!_h264_slice_bit_writer_pred_weight_table (slice,
|
|
slice->pps->sequence->chroma_array_type, bw, &have_space))
|
|
goto error;
|
|
}
|
|
|
|
if (is_ref) {
|
|
if (!_h264_bit_writer_slice_dec_ref_pic_marking (slice, nal_type, bw,
|
|
&have_space))
|
|
goto error;
|
|
}
|
|
|
|
if (slice->pps->entropy_coding_mode_flag && !GST_H264_IS_I_SLICE (slice) &&
|
|
!GST_H264_IS_SI_SLICE (slice))
|
|
WRITE_UE_MAX (bw, slice->cabac_init_idc, 2);
|
|
|
|
WRITE_SE_RANGE (bw, slice->slice_qp_delta, -87, 77);
|
|
|
|
if (GST_H264_IS_SP_SLICE (slice) || GST_H264_IS_SI_SLICE (slice)) {
|
|
if (GST_H264_IS_SP_SLICE (slice))
|
|
WRITE_BITS (bw, slice->sp_for_switch_flag, 1);
|
|
|
|
WRITE_SE_RANGE (bw, slice->slice_qs_delta, -51, 51);
|
|
}
|
|
|
|
if (slice->pps->deblocking_filter_control_present_flag) {
|
|
WRITE_UE_MAX (bw, slice->disable_deblocking_filter_idc, 2);
|
|
if (slice->disable_deblocking_filter_idc != 1) {
|
|
WRITE_SE_RANGE (bw, slice->slice_alpha_c0_offset_div2, -6, 6);
|
|
WRITE_SE_RANGE (bw, slice->slice_beta_offset_div2, -6, 6);
|
|
}
|
|
}
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("error to write slice header");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_h264_bit_writer_slice_hdr:
|
|
* @slice: the slice header of #GstH264SliceHdr to write
|
|
* @start_code: whether adding the nal start code
|
|
* @nal_type: the slice's nal type of #GstH264NalUnitType
|
|
* @is_ref: whether the slice is a reference
|
|
* @data: (out): the bit stream generated by the slice header
|
|
* @size: (inout): the size in bytes of the input and output
|
|
* @trail_bits_num: (out): the trail bits number which is not byte aligned.
|
|
*
|
|
* Generating the according h264 bit stream by providing the slice header.
|
|
*
|
|
* Returns: a #GstH264BitWriterResult
|
|
*
|
|
* Since: 1.22
|
|
**/
|
|
GstH264BitWriterResult
|
|
gst_h264_bit_writer_slice_hdr (const GstH264SliceHdr * slice,
|
|
gboolean start_code, GstH264NalUnitType nal_type, gboolean is_ref,
|
|
guint8 * data, guint * size, guint * trail_bits_num)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
GstBitWriter bw;
|
|
|
|
g_return_val_if_fail (slice != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (slice->pps != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (slice->pps->sequence != NULL,
|
|
GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (nal_type >= GST_H264_NAL_SLICE
|
|
&& nal_type <= GST_H264_NAL_SLICE_IDR, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (data != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (size != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (*size > 0, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (trail_bits_num != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
|
|
if (nal_type == GST_H264_NAL_SLICE_IDR)
|
|
g_return_val_if_fail (is_ref, GST_H264_BIT_WRITER_ERROR);
|
|
|
|
gst_bit_writer_init_with_data (&bw, data, *size, FALSE);
|
|
|
|
if (start_code)
|
|
WRITE_BITS (&bw, 0x00000001, 32);
|
|
|
|
/* nal header */
|
|
/* forbidden_zero_bit */
|
|
WRITE_BITS (&bw, 0, 1);
|
|
/* nal_ref_idc, zero for non-reference picture */
|
|
WRITE_BITS (&bw, is_ref, 2);
|
|
/* nal_unit_type */
|
|
WRITE_BITS (&bw, nal_type, 5);
|
|
|
|
if (!_h264_bit_writer_slice_hdr (slice, nal_type,
|
|
GST_H264_NAL_EXTENSION_NONE, is_ref, &bw, &have_space))
|
|
goto error;
|
|
|
|
/* We do not add trailing bits here, the slice data should follow it. */
|
|
|
|
*size = gst_bit_writer_get_size (&bw) / 8;
|
|
*trail_bits_num = gst_bit_writer_get_size (&bw) % 8;
|
|
gst_bit_writer_reset (&bw);
|
|
return GST_H264_BIT_WRITER_OK;
|
|
|
|
error:
|
|
gst_bit_writer_reset (&bw);
|
|
*size = 0;
|
|
|
|
return have_space ? GST_H264_BIT_WRITER_INVALID_DATA :
|
|
GST_H264_BIT_WRITER_NO_MORE_SPACE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_sei_registered_user_data (const GstH264RegisteredUserData *
|
|
rud, GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
|
|
GST_DEBUG ("Writing \"Registered user data\"");
|
|
|
|
WRITE_BITS (bw, rud->country_code, 8);
|
|
if (rud->country_code == 0xff)
|
|
WRITE_BITS (bw, rud->country_code_extension, 8);
|
|
|
|
WRITE_BYTES (bw, rud->data, rud->size);
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:GST_WARNING ("Failed to write \"Registered user data\"");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_sei_frame_packing (const GstH264FramePacking *
|
|
frame_packing, GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
|
|
GST_DEBUG ("Writing \"Frame packing\"");
|
|
|
|
WRITE_UE (bw, frame_packing->frame_packing_id);
|
|
WRITE_BITS (bw, frame_packing->frame_packing_cancel_flag, 1);
|
|
|
|
if (!frame_packing->frame_packing_cancel_flag) {
|
|
WRITE_BITS (bw, frame_packing->frame_packing_type, 7);
|
|
WRITE_BITS (bw, frame_packing->quincunx_sampling_flag, 1);
|
|
WRITE_BITS (bw, frame_packing->content_interpretation_type, 6);
|
|
WRITE_BITS (bw, frame_packing->spatial_flipping_flag, 1);
|
|
WRITE_BITS (bw, frame_packing->frame0_flipped_flag, 1);
|
|
WRITE_BITS (bw, frame_packing->field_views_flag, 1);
|
|
WRITE_BITS (bw, frame_packing->current_frame_is_frame0_flag, 1);
|
|
WRITE_BITS (bw, frame_packing->frame0_self_contained_flag, 1);
|
|
WRITE_BITS (bw, frame_packing->frame1_self_contained_flag, 1);
|
|
|
|
if (!frame_packing->quincunx_sampling_flag &&
|
|
frame_packing->frame_packing_type !=
|
|
GST_H264_FRAME_PACKING_TEMPORAL_INTERLEAVING) {
|
|
WRITE_BITS (bw, frame_packing->frame0_grid_position_x, 4);
|
|
WRITE_BITS (bw, frame_packing->frame0_grid_position_y, 4);
|
|
WRITE_BITS (bw, frame_packing->frame1_grid_position_x, 4);
|
|
WRITE_BITS (bw, frame_packing->frame1_grid_position_y, 4);
|
|
}
|
|
|
|
/* frame_packing_arrangement_reserved_byte */
|
|
WRITE_BITS (bw, 0, 8);
|
|
WRITE_UE (bw, frame_packing->frame_packing_repetition_period);
|
|
}
|
|
|
|
/* frame_packing_arrangement_extension_flag */
|
|
WRITE_BITS (bw, 0, 1);
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("Failed to write \"Frame packing\"");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_sei_mastering_display_colour_volume (const
|
|
GstH264MasteringDisplayColourVolume * mdcv, GstBitWriter * bw,
|
|
gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
gint i;
|
|
|
|
GST_DEBUG ("Wrtiting \"Mastering display colour volume\"");
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
WRITE_BITS (bw, mdcv->display_primaries_x[i], 16);
|
|
WRITE_BITS (bw, mdcv->display_primaries_y[i], 16);
|
|
}
|
|
|
|
WRITE_BITS (bw, mdcv->white_point_x, 16);
|
|
WRITE_BITS (bw, mdcv->white_point_y, 16);
|
|
WRITE_BITS (bw, mdcv->max_display_mastering_luminance, 32);
|
|
WRITE_BITS (bw, mdcv->min_display_mastering_luminance, 32);
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("Failed to write \"Mastering display colour volume\"");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_sei_content_light_level_info (const
|
|
GstH264ContentLightLevel * cll, GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
|
|
GST_DEBUG ("Writing \"Content light level\"");
|
|
|
|
WRITE_BITS (bw, cll->max_content_light_level, 16);
|
|
WRITE_BITS (bw, cll->max_pic_average_light_level, 16);
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("Failed to write \"Content light level\"");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_sei_pic_timing (const GstH264PicTiming * tim,
|
|
GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
|
|
GST_DEBUG ("Writing \"Picture timing\"");
|
|
|
|
if (tim->CpbDpbDelaysPresentFlag) {
|
|
WRITE_BITS (bw, tim->cpb_removal_delay,
|
|
tim->cpb_removal_delay_length_minus1 + 1);
|
|
WRITE_BITS (bw, tim->dpb_output_delay,
|
|
tim->dpb_output_delay_length_minus1 + 1);
|
|
}
|
|
|
|
if (tim->pic_struct_present_flag) {
|
|
const guint8 num_clock_ts_table[9] = {
|
|
1, 1, 1, 2, 2, 3, 3, 2, 3
|
|
};
|
|
guint8 num_clock_num_ts;
|
|
guint i;
|
|
|
|
WRITE_BITS (bw, tim->pic_struct, 4);
|
|
|
|
num_clock_num_ts = num_clock_ts_table[tim->pic_struct];
|
|
for (i = 0; i < num_clock_num_ts; i++) {
|
|
WRITE_BITS (bw, tim->clock_timestamp_flag[i], 1);
|
|
if (tim->clock_timestamp_flag[i]) {
|
|
const GstH264ClockTimestamp *timestamp = &tim->clock_timestamp[i];
|
|
|
|
WRITE_BITS (bw, timestamp->ct_type, 2);
|
|
WRITE_BITS (bw, timestamp->nuit_field_based_flag, 1);
|
|
WRITE_BITS (bw, timestamp->counting_type, 5);
|
|
WRITE_BITS (bw, timestamp->full_timestamp_flag, 1);
|
|
WRITE_BITS (bw, timestamp->discontinuity_flag, 1);
|
|
WRITE_BITS (bw, timestamp->cnt_dropped_flag, 1);
|
|
WRITE_BITS (bw, timestamp->n_frames, 8);
|
|
|
|
if (timestamp->full_timestamp_flag) {
|
|
if (!timestamp->seconds_flag || !timestamp->minutes_flag
|
|
|| !timestamp->hours_flag)
|
|
goto error;
|
|
|
|
WRITE_BITS (bw, timestamp->seconds_value, 6);
|
|
WRITE_BITS (bw, timestamp->minutes_value, 6);
|
|
WRITE_BITS (bw, timestamp->hours_value, 5);
|
|
} else {
|
|
WRITE_BITS (bw, timestamp->seconds_flag, 1);
|
|
if (timestamp->seconds_flag) {
|
|
WRITE_BITS (bw, timestamp->seconds_value, 6);
|
|
WRITE_BITS (bw, timestamp->minutes_flag, 1);
|
|
if (timestamp->minutes_flag) {
|
|
WRITE_BITS (bw, timestamp->minutes_value, 6);
|
|
WRITE_BITS (bw, timestamp->hours_flag, 1);
|
|
if (timestamp->hours_flag)
|
|
WRITE_BITS (bw, timestamp->hours_value, 5);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (tim->time_offset_length > 0) {
|
|
WRITE_BITS (bw, timestamp->time_offset, tim->time_offset_length);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("Failed to write \"Picture timing\"");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_sei_buffering_period (const GstH264BufferingPeriod * per,
|
|
GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
|
|
GST_DEBUG ("Writing \"Buffering period\"");
|
|
|
|
if (!per->sps)
|
|
goto error;
|
|
|
|
WRITE_UE_MAX (bw, per->sps->id, GST_H264_MAX_SPS_COUNT - 1);
|
|
|
|
if (per->sps->vui_parameters_present_flag) {
|
|
GstH264VUIParams *vui = &per->sps->vui_parameters;
|
|
|
|
if (vui->nal_hrd_parameters_present_flag) {
|
|
GstH264HRDParams *hrd = &vui->nal_hrd_parameters;
|
|
const guint8 nbits = hrd->initial_cpb_removal_delay_length_minus1 + 1;
|
|
guint8 sched_sel_idx;
|
|
|
|
for (sched_sel_idx = 0; sched_sel_idx <= hrd->cpb_cnt_minus1;
|
|
sched_sel_idx++) {
|
|
WRITE_BITS (bw, per->nal_initial_cpb_removal_delay[sched_sel_idx],
|
|
nbits);
|
|
WRITE_BITS (bw,
|
|
per->nal_initial_cpb_removal_delay_offset[sched_sel_idx], nbits);
|
|
}
|
|
}
|
|
|
|
if (vui->vcl_hrd_parameters_present_flag) {
|
|
GstH264HRDParams *hrd = &vui->vcl_hrd_parameters;
|
|
const guint8 nbits = hrd->initial_cpb_removal_delay_length_minus1 + 1;
|
|
guint8 sched_sel_idx;
|
|
|
|
for (sched_sel_idx = 0; sched_sel_idx <= hrd->cpb_cnt_minus1;
|
|
sched_sel_idx++) {
|
|
WRITE_BITS (bw, per->vcl_initial_cpb_removal_delay[sched_sel_idx],
|
|
nbits);
|
|
WRITE_BITS (bw,
|
|
per->vcl_initial_cpb_removal_delay_offset[sched_sel_idx], nbits);
|
|
}
|
|
}
|
|
}
|
|
|
|
*space = TRUE;
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("Failed to write \"Buffering period\"");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_h264_bit_writer_sei_message (const GstH264SEIMessage * msg,
|
|
GstBitWriter * bw, gboolean * space)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
|
|
GST_DEBUG ("writing SEI message");
|
|
|
|
switch (msg->payloadType) {
|
|
case GST_H264_SEI_REGISTERED_USER_DATA:
|
|
if (!_h264_bit_writer_sei_registered_user_data
|
|
(&msg->payload.registered_user_data, bw, &have_space))
|
|
goto error;
|
|
break;
|
|
case GST_H264_SEI_FRAME_PACKING:
|
|
if (!_h264_bit_writer_sei_frame_packing
|
|
(&msg->payload.frame_packing, bw, &have_space))
|
|
goto error;
|
|
break;
|
|
case GST_H264_SEI_MASTERING_DISPLAY_COLOUR_VOLUME:
|
|
if (!_h264_bit_writer_sei_mastering_display_colour_volume
|
|
(&msg->payload.mastering_display_colour_volume, bw, &have_space))
|
|
goto error;
|
|
break;
|
|
case GST_H264_SEI_CONTENT_LIGHT_LEVEL:
|
|
if (!_h264_bit_writer_sei_content_light_level_info
|
|
(&msg->payload.content_light_level, bw, &have_space))
|
|
goto error;
|
|
break;
|
|
case GST_H264_SEI_PIC_TIMING:
|
|
if (!_h264_bit_writer_sei_pic_timing (&msg->payload.pic_timing, bw,
|
|
&have_space))
|
|
goto error;
|
|
break;
|
|
case GST_H264_SEI_BUF_PERIOD:
|
|
if (!_h264_bit_writer_sei_buffering_period
|
|
(&msg->payload.buffering_period, bw, &have_space))
|
|
goto error;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Add trailings. */
|
|
WRITE_BITS (bw, 1, 1);
|
|
gst_bit_writer_align_bytes_unchecked (bw, 0);
|
|
|
|
*space = TRUE;
|
|
|
|
return TRUE;
|
|
|
|
error:
|
|
GST_WARNING ("error to write SEI message");
|
|
|
|
*space = have_space;
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_h264_bit_writer_sei:
|
|
* @sei_messages: An array of #GstH264SEIMessage to write
|
|
* @start_code: whether adding the nal start code
|
|
* @data: (out): the bit stream generated by the sei messages
|
|
* @size: (inout): the size in bytes of the input and output
|
|
*
|
|
* Generating the according h264 bit stream by providing sei messages.
|
|
*
|
|
* Returns: a #GstH264BitWriterResult
|
|
*
|
|
* Since: 1.22
|
|
**/
|
|
GstH264BitWriterResult
|
|
gst_h264_bit_writer_sei (GArray * sei_messages, gboolean start_code,
|
|
guint8 * data, guint * size)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
GstBitWriter bw;
|
|
GstBitWriter bw_msg;
|
|
GstH264SEIMessage *sei;
|
|
gboolean have_written_data = FALSE;
|
|
guint i;
|
|
|
|
g_return_val_if_fail (sei_messages != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (data != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (size != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (*size > 0, GST_H264_BIT_WRITER_ERROR);
|
|
|
|
gst_bit_writer_init_with_data (&bw, data, *size, FALSE);
|
|
|
|
if (start_code)
|
|
WRITE_BITS (&bw, 0x00000001, 32);
|
|
|
|
/* nal header */
|
|
/* forbidden_zero_bit */
|
|
WRITE_BITS (&bw, 0, 1);
|
|
/* nal_ref_idc, zero for sei nalu */
|
|
WRITE_BITS (&bw, 0, 2);
|
|
/* nal_unit_type */
|
|
WRITE_BITS (&bw, GST_H264_NAL_SEI, 5);
|
|
|
|
for (i = 0; i < sei_messages->len; i++) {
|
|
guint32 payload_size_data;
|
|
guint32 payload_type_data;
|
|
guint32 sz;
|
|
|
|
gst_bit_writer_init (&bw_msg);
|
|
|
|
sei = &g_array_index (sei_messages, GstH264SEIMessage, i);
|
|
if (!_h264_bit_writer_sei_message (sei, &bw_msg, &have_space))
|
|
goto error;
|
|
|
|
if (gst_bit_writer_get_size (&bw_msg) == 0) {
|
|
GST_FIXME ("Unsupported SEI type %d", sei->payloadType);
|
|
continue;
|
|
}
|
|
|
|
have_written_data = TRUE;
|
|
|
|
g_assert (gst_bit_writer_get_size (&bw_msg) % 8 == 0);
|
|
payload_size_data = gst_bit_writer_get_size (&bw_msg) / 8;
|
|
payload_type_data = sei->payloadType;
|
|
|
|
/* write payload type bytes */
|
|
while (payload_type_data >= 0xff) {
|
|
WRITE_BITS (&bw, 0xff, 8);
|
|
payload_type_data -= 0xff;
|
|
}
|
|
WRITE_BITS (&bw, payload_type_data, 8);
|
|
|
|
/* write payload size bytes */
|
|
sz = payload_size_data;
|
|
while (sz >= 0xff) {
|
|
WRITE_BITS (&bw, 0xff, 8);
|
|
sz -= 0xff;
|
|
}
|
|
WRITE_BITS (&bw, sz, 8);
|
|
|
|
if (payload_size_data > 0)
|
|
WRITE_BYTES (&bw, gst_bit_writer_get_data (&bw_msg), payload_size_data);
|
|
|
|
gst_bit_writer_reset (&bw_msg);
|
|
}
|
|
|
|
if (!have_written_data) {
|
|
GST_WARNING ("No written sei data");
|
|
goto error;
|
|
}
|
|
|
|
/* Add trailings. */
|
|
WRITE_BITS (&bw, 1, 1);
|
|
if (!gst_bit_writer_align_bytes (&bw, 0)) {
|
|
have_space = FALSE;
|
|
goto error;
|
|
}
|
|
|
|
*size = (gst_bit_writer_get_size (&bw)) / 8;
|
|
gst_bit_writer_reset (&bw);
|
|
return GST_H264_BIT_WRITER_OK;
|
|
|
|
error:
|
|
gst_bit_writer_reset (&bw);
|
|
*size = 0;
|
|
|
|
return have_space ? GST_H264_BIT_WRITER_INVALID_DATA :
|
|
GST_H264_BIT_WRITER_NO_MORE_SPACE;
|
|
}
|
|
|
|
/**
|
|
* gst_h264_bit_writer_aud:
|
|
* @primary_pic_type: indicate the possible slice types list just
|
|
* as the H264 spec defines
|
|
* @start_code: whether adding the nal start code
|
|
* @data: (out): the bit stream generated by the aud
|
|
* @size: (inout): the size in bytes of the input and output
|
|
*
|
|
* Generating the according h264 bit stream of an aud.
|
|
*
|
|
* Returns: a #GstH264BitWriterResult
|
|
*
|
|
* Since: 1.22
|
|
**/
|
|
GstH264BitWriterResult
|
|
gst_h264_bit_writer_aud (guint8 primary_pic_type, gboolean start_code,
|
|
guint8 * data, guint * size)
|
|
{
|
|
gboolean have_space = TRUE;
|
|
GstBitWriter bw;
|
|
|
|
g_return_val_if_fail (primary_pic_type <= 7, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (data != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (size != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (*size > 0, GST_H264_BIT_WRITER_ERROR);
|
|
|
|
gst_bit_writer_init_with_data (&bw, data, *size, FALSE);
|
|
|
|
if (start_code)
|
|
WRITE_BITS (&bw, 0x00000001, 32);
|
|
|
|
/* nal header */
|
|
/* forbidden_zero_bit */
|
|
WRITE_BITS (&bw, 0, 1);
|
|
/* nal_ref_idc */
|
|
WRITE_BITS (&bw, 0, 2);
|
|
/* nal_unit_type */
|
|
WRITE_BITS (&bw, GST_H264_NAL_AU_DELIMITER, 5);
|
|
|
|
WRITE_BITS (&bw, primary_pic_type, 3);
|
|
|
|
/* Add trailings. */
|
|
WRITE_BITS (&bw, 1, 1);
|
|
if (!gst_bit_writer_align_bytes (&bw, 0)) {
|
|
goto error;
|
|
}
|
|
|
|
*size = (gst_bit_writer_get_size (&bw)) / 8;
|
|
gst_bit_writer_reset (&bw);
|
|
|
|
return GST_H264_BIT_WRITER_OK;
|
|
|
|
error:
|
|
gst_bit_writer_reset (&bw);
|
|
*size = 0;
|
|
|
|
return have_space ? GST_H264_BIT_WRITER_INVALID_DATA :
|
|
GST_H264_BIT_WRITER_NO_MORE_SPACE;
|
|
}
|
|
|
|
/**
|
|
* gst_h264_bit_writer_convert_to_nal:
|
|
* @nal_prefix_size: the size in bytes for the prefix of a nal, may
|
|
* be 2, 3 or 4
|
|
* @packetized: whether to write the bit stream in packetized format,
|
|
* which does not have the start code but has a @nal_prefix_size bytes'
|
|
* size prepending to the real nal data
|
|
* @has_startcode: whether the input already has a start code
|
|
* @add_trailings: whether to add rbsp trailing bits to make the output
|
|
* aligned to byte
|
|
* @raw_data: the input bit stream
|
|
* @raw_size: the size in bits of the input bit stream
|
|
* @nal_data: (out): the output bit stream converted to a real nal
|
|
* @nal_size: (inout): the size in bytes of the output
|
|
*
|
|
* Converting a bit stream into a real nal packet. If the bit stream already
|
|
* has a start code, it will be replaced by the new one specified by the
|
|
* @nal_prefix_size and @packetized. It is assured that the output aligns to
|
|
* the byte and the all the emulations are inserted.
|
|
*
|
|
* Returns: a #GstH264BitWriterResult
|
|
*
|
|
* Since: 1.22
|
|
**/
|
|
GstH264BitWriterResult
|
|
gst_h264_bit_writer_convert_to_nal (guint nal_prefix_size, gboolean packetized,
|
|
gboolean has_startcode, gboolean add_trailings, const guint8 * raw_data,
|
|
gsize raw_size, guint8 * nal_data, guint * nal_size)
|
|
{
|
|
NalWriter nw;
|
|
guint8 *data;
|
|
guint32 size = 0;
|
|
gboolean need_more_space = FALSE;
|
|
|
|
g_return_val_if_fail (
|
|
(packetized && nal_prefix_size > 1 && nal_prefix_size < 5) ||
|
|
(!packetized && (nal_prefix_size == 3 || nal_prefix_size == 4)),
|
|
GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (raw_data != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (raw_size > 0, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (nal_data != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (nal_size != NULL, GST_H264_BIT_WRITER_ERROR);
|
|
g_return_val_if_fail (*nal_size > 0, GST_H264_BIT_WRITER_ERROR);
|
|
|
|
if (has_startcode) {
|
|
/* Skip the start code, the NalWriter will add it automatically. */
|
|
if (raw_size >= 4 && raw_data[0] == 0
|
|
&& raw_data[1] == 0 && raw_data[2] == 0 && raw_data[3] == 0x01) {
|
|
raw_data += 4;
|
|
raw_size -= 4 * 8;
|
|
} else if (raw_size >= 3 && raw_data[0] == 0 && raw_data[1] == 0
|
|
&& raw_data[2] == 0x01) {
|
|
raw_data += 3;
|
|
raw_size -= 3 * 8;
|
|
} else {
|
|
/* Fail to find the start code. */
|
|
g_return_val_if_reached (GST_H264_BIT_WRITER_ERROR);
|
|
}
|
|
}
|
|
|
|
/* If no RBSP trailing needed, it must align to byte. We assume
|
|
that the rbsp trailing bits are already added. */
|
|
if (!add_trailings)
|
|
g_return_val_if_fail (raw_size % 8 == 0, GST_H264_BIT_WRITER_ERROR);
|
|
|
|
nal_writer_init (&nw, nal_prefix_size, packetized);
|
|
|
|
if (!nal_writer_put_bytes (&nw, raw_data, raw_size / 8))
|
|
goto error;
|
|
|
|
if (raw_size % 8) {
|
|
guint8 data = *(raw_data + raw_size / 8);
|
|
|
|
if (!nal_writer_put_bits_uint8 (&nw,
|
|
data >> (8 - raw_size % 8), raw_size % 8))
|
|
goto error;
|
|
}
|
|
|
|
if (add_trailings) {
|
|
if (!nal_writer_do_rbsp_trailing_bits (&nw))
|
|
goto error;
|
|
}
|
|
|
|
data = nal_writer_reset_and_get_data (&nw, &size);
|
|
if (!data)
|
|
goto error;
|
|
|
|
if (size > *nal_size) {
|
|
need_more_space = TRUE;
|
|
g_free (data);
|
|
goto error;
|
|
}
|
|
|
|
memcpy (nal_data, data, size);
|
|
*nal_size = size;
|
|
g_free (data);
|
|
nal_writer_reset (&nw);
|
|
return GST_H264_BIT_WRITER_OK;
|
|
|
|
error:
|
|
nal_writer_reset (&nw);
|
|
*nal_size = 0;
|
|
|
|
GST_WARNING ("Failed to convert nal data");
|
|
|
|
return need_more_space ? GST_H264_BIT_WRITER_INVALID_DATA :
|
|
GST_H264_BIT_WRITER_NO_MORE_SPACE;
|
|
}
|