Allow replacement of hevc headers
This commit is contained in:
loki
4
third-party/cbs/CMakeLists.txt
vendored
4
third-party/cbs/CMakeLists.txt
vendored
@@ -18,7 +18,7 @@ include/cbs/h2645_parse.h
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include/cbs/h264.h
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include/cbs/hevc.h
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include/cbs/sei.h
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include/cbs/h264_levels.h
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include/cbs/video_levels.h
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cbs.c
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cbs_h2645.c
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@@ -28,7 +28,7 @@ cbs_mpeg2.c
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cbs_jpeg.c
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cbs_sei.c
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h2645_parse.c
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h264_levels.c
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video_levels.c
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bytestream.h
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cbs_internal.h
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121
third-party/cbs/h264_levels.c
vendored
121
third-party/cbs/h264_levels.c
vendored
@@ -1,121 +0,0 @@
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <libavcodec/avcodec.h>
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#include "include/cbs/h264_levels.h"
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// H.264 table A-1.
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static const H264LevelDescriptor h264_levels[] = {
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// Name MaxMBPS MaxBR MinCR
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// | level_idc | MaxFS | MaxCPB | MaxMvsPer2Mb
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// | | cs3f | | MaxDpbMbs | | MaxVmvR | |
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{ "1", 10, 0, 1485, 99, 396, 64, 175, 64, 2, 0 },
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{ "1b", 11, 1, 1485, 99, 396, 128, 350, 64, 2, 0 },
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{ "1b", 9, 0, 1485, 99, 396, 128, 350, 64, 2, 0 },
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{ "1.1", 11, 0, 3000, 396, 900, 192, 500, 128, 2, 0 },
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{ "1.2", 12, 0, 6000, 396, 2376, 384, 1000, 128, 2, 0 },
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{ "1.3", 13, 0, 11880, 396, 2376, 768, 2000, 128, 2, 0 },
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{ "2", 20, 0, 11880, 396, 2376, 2000, 2000, 128, 2, 0 },
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{ "2.1", 21, 0, 19800, 792, 4752, 4000, 4000, 256, 2, 0 },
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{ "2.2", 22, 0, 20250, 1620, 8100, 4000, 4000, 256, 2, 0 },
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{ "3", 30, 0, 40500, 1620, 8100, 10000, 10000, 256, 2, 32 },
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{ "3.1", 31, 0, 108000, 3600, 18000, 14000, 14000, 512, 4, 16 },
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{ "3.2", 32, 0, 216000, 5120, 20480, 20000, 20000, 512, 4, 16 },
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{ "4", 40, 0, 245760, 8192, 32768, 20000, 25000, 512, 4, 16 },
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{ "4.1", 41, 0, 245760, 8192, 32768, 50000, 62500, 512, 2, 16 },
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{ "4.2", 42, 0, 522240, 8704, 34816, 50000, 62500, 512, 2, 16 },
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{ "5", 50, 0, 589824, 22080, 110400, 135000, 135000, 512, 2, 16 },
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{ "5.1", 51, 0, 983040, 36864, 184320, 240000, 240000, 512, 2, 16 },
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{ "5.2", 52, 0, 2073600, 36864, 184320, 240000, 240000, 512, 2, 16 },
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{ "6", 60, 0, 4177920, 139264, 696320, 240000, 240000, 8192, 2, 16 },
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{ "6.1", 61, 0, 8355840, 139264, 696320, 480000, 480000, 8192, 2, 16 },
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{ "6.2", 62, 0, 16711680, 139264, 696320, 800000, 800000, 8192, 2, 16 },
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};
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// H.264 table A-2 plus values from A-1.
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static const struct {
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int profile_idc;
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int cpb_br_vcl_factor;
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int cpb_br_nal_factor;
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} h264_br_factors[] = {
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{ 66, 1000, 1200 },
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{ 77, 1000, 1200 },
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{ 88, 1000, 1200 },
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{ 100, 1250, 1500 },
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{ 110, 3000, 3600 },
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{ 122, 4000, 4800 },
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{ 244, 4000, 4800 },
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{ 44, 4000, 4800 },
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};
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// We are only ever interested in the NAL bitrate factor.
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static int h264_get_br_factor(int profile_idc) {
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int i;
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for(i = 0; i < FF_ARRAY_ELEMS(h264_br_factors); i++) {
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if(h264_br_factors[i].profile_idc == profile_idc)
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return h264_br_factors[i].cpb_br_nal_factor;
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}
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// Default to the non-high profile value if not specified.
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return 1200;
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}
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const H264LevelDescriptor *ff_h264_guess_level(int profile_idc,
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int64_t bitrate,
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int framerate,
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int width, int height,
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int max_dec_frame_buffering) {
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int width_mbs = (width + 15) / 16;
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int height_mbs = (height + 15) / 16;
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int no_cs3f = !(profile_idc == 66 ||
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profile_idc == 77 ||
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profile_idc == 88);
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int i;
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for(i = 0; i < FF_ARRAY_ELEMS(h264_levels); i++) {
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const H264LevelDescriptor *level = &h264_levels[i];
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if(level->constraint_set3_flag && no_cs3f)
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continue;
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if(bitrate > (int64_t)level->max_br * h264_get_br_factor(profile_idc))
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continue;
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if(width_mbs * height_mbs > level->max_fs)
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continue;
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if(width_mbs * width_mbs > 8 * level->max_fs)
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continue;
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if(height_mbs * height_mbs > 8 * level->max_fs)
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continue;
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if(width_mbs && height_mbs) {
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int max_dpb_frames =
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FFMIN(level->max_dpb_mbs / (width_mbs * height_mbs), 16);
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if(max_dec_frame_buffering > max_dpb_frames)
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continue;
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if(framerate > (level->max_mbps / (width_mbs * height_mbs)))
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continue;
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}
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return level;
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}
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// No usable levels found - frame is too big or bitrate is too high.
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return NULL;
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}
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@@ -22,6 +22,53 @@
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#include <stdint.h>
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#include "cbs_h265.h"
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typedef struct H265LevelDescriptor {
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const char *name;
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uint8_t level_idc;
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// Table A.6.
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uint32_t max_luma_ps;
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uint32_t max_cpb_main;
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uint32_t max_cpb_high;
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uint16_t max_slice_segments_per_picture;
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uint8_t max_tile_rows;
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uint8_t max_tile_cols;
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// Table A.7.
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uint32_t max_luma_sr;
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uint32_t max_br_main;
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uint32_t max_br_high;
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uint8_t min_cr_base_main;
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uint8_t min_cr_base_high;
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} H265LevelDescriptor;
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typedef struct H265ProfileDescriptor {
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const char *name;
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uint8_t profile_idc;
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uint8_t high_throughput;
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// Tables A.2, A.3 and A.5.
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uint8_t max_14bit;
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uint8_t max_12bit;
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uint8_t max_10bit;
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uint8_t max_8bit;
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uint8_t max_422chroma;
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uint8_t max_420chroma;
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uint8_t max_monochrome;
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uint8_t intra;
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uint8_t one_picture_only;
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uint8_t lower_bit_rate;
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// Table A.8.
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uint16_t cpb_vcl_factor;
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uint16_t cpb_nal_factor;
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float format_capability_factor;
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float min_cr_scale_factor;
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uint8_t max_dpb_pic_buf;
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} H265ProfileDescriptor;
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typedef struct H264LevelDescriptor {
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const char *name;
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uint8_t level_idc;
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@@ -36,6 +83,20 @@ typedef struct H264LevelDescriptor {
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uint8_t max_mvs_per_2mb;
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} H264LevelDescriptor;
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const H265ProfileDescriptor *ff_h265_get_profile(const H265RawProfileTierLevel *ptl);
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/**
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* Guess the level of a stream from some parameters.
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*
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* Unknown parameters may be zero, in which case they are ignored.
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*/
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const H265LevelDescriptor *ff_h265_guess_level(const H265RawProfileTierLevel *ptl,
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int64_t bitrate,
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int width, int height,
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int slice_segments,
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int tile_rows, int tile_cols,
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int max_dec_pic_buffering);
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/**
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* Guess the level of a stream from some parameters.
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*
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349
third-party/cbs/video_levels.c
vendored
Normal file
349
third-party/cbs/video_levels.c
vendored
Normal file
@@ -0,0 +1,349 @@
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
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* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
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||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <libavcodec/avcodec.h>
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#include "include/cbs/video_levels.h"
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// H.264 table A-1.
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static const H264LevelDescriptor h264_levels[] = {
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// Name MaxMBPS MaxBR MinCR
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// | level_idc | MaxFS | MaxCPB | MaxMvsPer2Mb
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// | | cs3f | | MaxDpbMbs | | MaxVmvR | |
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{ "1", 10, 0, 1485, 99, 396, 64, 175, 64, 2, 0 },
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{ "1b", 11, 1, 1485, 99, 396, 128, 350, 64, 2, 0 },
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{ "1b", 9, 0, 1485, 99, 396, 128, 350, 64, 2, 0 },
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{ "1.1", 11, 0, 3000, 396, 900, 192, 500, 128, 2, 0 },
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{ "1.2", 12, 0, 6000, 396, 2376, 384, 1000, 128, 2, 0 },
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{ "1.3", 13, 0, 11880, 396, 2376, 768, 2000, 128, 2, 0 },
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{ "2", 20, 0, 11880, 396, 2376, 2000, 2000, 128, 2, 0 },
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{ "2.1", 21, 0, 19800, 792, 4752, 4000, 4000, 256, 2, 0 },
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{ "2.2", 22, 0, 20250, 1620, 8100, 4000, 4000, 256, 2, 0 },
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{ "3", 30, 0, 40500, 1620, 8100, 10000, 10000, 256, 2, 32 },
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{ "3.1", 31, 0, 108000, 3600, 18000, 14000, 14000, 512, 4, 16 },
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{ "3.2", 32, 0, 216000, 5120, 20480, 20000, 20000, 512, 4, 16 },
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{ "4", 40, 0, 245760, 8192, 32768, 20000, 25000, 512, 4, 16 },
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{ "4.1", 41, 0, 245760, 8192, 32768, 50000, 62500, 512, 2, 16 },
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{ "4.2", 42, 0, 522240, 8704, 34816, 50000, 62500, 512, 2, 16 },
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{ "5", 50, 0, 589824, 22080, 110400, 135000, 135000, 512, 2, 16 },
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{ "5.1", 51, 0, 983040, 36864, 184320, 240000, 240000, 512, 2, 16 },
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{ "5.2", 52, 0, 2073600, 36864, 184320, 240000, 240000, 512, 2, 16 },
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{ "6", 60, 0, 4177920, 139264, 696320, 240000, 240000, 8192, 2, 16 },
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{ "6.1", 61, 0, 8355840, 139264, 696320, 480000, 480000, 8192, 2, 16 },
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{ "6.2", 62, 0, 16711680, 139264, 696320, 800000, 800000, 8192, 2, 16 },
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};
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// H.264 table A-2 plus values from A-1.
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static const struct {
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int profile_idc;
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int cpb_br_vcl_factor;
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int cpb_br_nal_factor;
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} h264_br_factors[] = {
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{ 66, 1000, 1200 },
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{ 77, 1000, 1200 },
|
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{ 88, 1000, 1200 },
|
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{ 100, 1250, 1500 },
|
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{ 110, 3000, 3600 },
|
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{ 122, 4000, 4800 },
|
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{ 244, 4000, 4800 },
|
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{ 44, 4000, 4800 },
|
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};
|
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|
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// We are only ever interested in the NAL bitrate factor.
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static int h264_get_br_factor(int profile_idc) {
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int i;
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for(i = 0; i < FF_ARRAY_ELEMS(h264_br_factors); i++) {
|
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if(h264_br_factors[i].profile_idc == profile_idc)
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return h264_br_factors[i].cpb_br_nal_factor;
|
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}
|
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// Default to the non-high profile value if not specified.
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return 1200;
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}
|
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|
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const H264LevelDescriptor *ff_h264_guess_level(int profile_idc,
|
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int64_t bitrate,
|
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int framerate,
|
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int width, int height,
|
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int max_dec_frame_buffering) {
|
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int width_mbs = (width + 15) / 16;
|
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int height_mbs = (height + 15) / 16;
|
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int no_cs3f = !(profile_idc == 66 ||
|
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profile_idc == 77 ||
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profile_idc == 88);
|
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int i;
|
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|
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for(i = 0; i < FF_ARRAY_ELEMS(h264_levels); i++) {
|
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const H264LevelDescriptor *level = &h264_levels[i];
|
||||
|
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if(level->constraint_set3_flag && no_cs3f)
|
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continue;
|
||||
|
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if(bitrate > (int64_t)level->max_br * h264_get_br_factor(profile_idc))
|
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continue;
|
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|
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if(width_mbs * height_mbs > level->max_fs)
|
||||
continue;
|
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if(width_mbs * width_mbs > 8 * level->max_fs)
|
||||
continue;
|
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if(height_mbs * height_mbs > 8 * level->max_fs)
|
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continue;
|
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|
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if(width_mbs && height_mbs) {
|
||||
int max_dpb_frames =
|
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FFMIN(level->max_dpb_mbs / (width_mbs * height_mbs), 16);
|
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if(max_dec_frame_buffering > max_dpb_frames)
|
||||
continue;
|
||||
|
||||
if(framerate > (level->max_mbps / (width_mbs * height_mbs)))
|
||||
continue;
|
||||
}
|
||||
|
||||
return level;
|
||||
}
|
||||
|
||||
// No usable levels found - frame is too big or bitrate is too high.
|
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return NULL;
|
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}
|
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|
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static const H265LevelDescriptor h265_levels[] = {
|
||||
// Name CpbFactor-Main MaxSliceSegmentsPerPicture
|
||||
// | level_idc | CpbFactor-High MaxLumaSr BrFactor-High
|
||||
// | | MaxLumaPs | | | MaxTileRows | BrFactor-Main | MinCr-Main
|
||||
// | | | | | | | MaxTileCols | | | MinCr-High
|
||||
{ "1", 30, 36864, 350, 0, 16, 1, 1, 552960, 128, 0, 2, 2 },
|
||||
{ "2", 60, 122880, 1500, 0, 16, 1, 1, 3686400, 1500, 0, 2, 2 },
|
||||
{ "2.1", 63, 245760, 3000, 0, 20, 1, 1, 7372800, 3000, 0, 2, 2 },
|
||||
{ "3", 90, 552960, 6000, 0, 30, 2, 2, 16588800, 6000, 0, 2, 2 },
|
||||
{ "3.1", 93, 983040, 10000, 0, 40, 3, 3, 33177600, 10000, 0, 2, 2 },
|
||||
{ "4", 120, 2228224, 12000, 30000, 75, 5, 5, 66846720, 12000, 30000, 4, 4 },
|
||||
{ "4.1", 123, 2228224, 20000, 50000, 75, 5, 5, 133693440, 20000, 50000, 4, 4 },
|
||||
{ "5", 150, 8912896, 25000, 100000, 200, 11, 10, 267386880, 25000, 100000, 6, 4 },
|
||||
{ "5.1", 153, 8912896, 40000, 160000, 200, 11, 10, 534773760, 40000, 160000, 8, 4 },
|
||||
{ "5.2", 156, 8912896, 60000, 240000, 200, 11, 10, 1069547520, 60000, 240000, 8, 4 },
|
||||
{ "6", 180, 35651584, 60000, 240000, 600, 22, 20, 1069547520, 60000, 240000, 8, 4 },
|
||||
{ "6.1", 183, 35651584, 120000, 480000, 600, 22, 20, 2139095040, 120000, 480000, 8, 4 },
|
||||
{ "6.2", 186, 35651584, 240000, 800000, 600, 22, 20, 4278190080, 240000, 800000, 6, 4 },
|
||||
};
|
||||
|
||||
static const H265ProfileDescriptor h265_profiles[] = {
|
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// profile_idc 8bit one-picture
|
||||
// HT-profile | 422chroma | lower-bit-rate
|
||||
// | 14bit | | 420chroma | | CpbVclFactor MinCrScaleFactor
|
||||
// | | 12bit | | | monochrome| | CpbNalFactor | maxDpbPicBuf
|
||||
// | | | 10bit | | | intra | | | FormatCapabilityFactor
|
||||
{ "Monochrome", // | | | | | | | | | | |
|
||||
4, 0, 2, 1, 1, 1, 1, 1, 1, 0, 0, 1, 667, 733, 1.000, 1.0, 6 },
|
||||
{ "Monochrome 10",
|
||||
4, 0, 2, 1, 1, 0, 1, 1, 1, 0, 0, 1, 833, 917, 1.250, 1.0, 6 },
|
||||
{ "Monochrome 12",
|
||||
4, 0, 2, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1000, 1100, 1.500, 1.0, 6 },
|
||||
{ "Monochrome 16",
|
||||
4, 0, 2, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1333, 1467, 2.000, 1.0, 6 },
|
||||
{ "Main",
|
||||
1, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1000, 1100, 1.500, 1.0, 6 },
|
||||
{ "Screen-Extended Main",
|
||||
9, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1000, 1100, 1.500, 1.0, 7 },
|
||||
{ "Main 10",
|
||||
2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 1000, 1100, 1.875, 1.0, 6 },
|
||||
{ "Screen-Extended Main 10",
|
||||
9, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1000, 1100, 1.875, 1.0, 7 },
|
||||
{ "Main 12",
|
||||
4, 0, 2, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1500, 1650, 2.250, 1.0, 6 },
|
||||
{ "Main Still Picture",
|
||||
3, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1000, 1100, 1.500, 1.0, 6 },
|
||||
{ "Main 10 Still Picture",
|
||||
2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1000, 1100, 1.875, 1.0, 6 },
|
||||
{ "Main 4:2:2 10",
|
||||
4, 0, 2, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1667, 1833, 2.500, 0.5, 6 },
|
||||
{ "Main 4:2:2 12",
|
||||
4, 0, 2, 1, 0, 0, 1, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 6 },
|
||||
{ "Main 4:4:4",
|
||||
4, 0, 2, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 6 },
|
||||
{ "High Throughput 4:4:4",
|
||||
5, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 6 },
|
||||
{ "Screen-Extended Main 4:4:4",
|
||||
9, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 7 },
|
||||
{ "Screen-Extended High Throughput 4:4:4",
|
||||
9, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 2000, 2200, 3.000, 0.5, 7 },
|
||||
{ "Main 4:4:4 10",
|
||||
4, 0, 2, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5, 6 },
|
||||
{ "High Throughput 4:4:4 10",
|
||||
5, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5, 6 },
|
||||
{ "Screen-Extended Main 4:4:4 10",
|
||||
9, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5, 7 },
|
||||
{ "Screen-Extended High Throughput 4:4:4 10",
|
||||
9, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2500, 2750, 3.750, 0.5, 7 },
|
||||
{ "Main 4:4:4 12",
|
||||
4, 0, 2, 1, 0, 0, 0, 0, 0, 0, 0, 1, 3000, 3300, 4.500, 0.5, 6 },
|
||||
{ "High Throughput 4:4:4 14",
|
||||
5, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3500, 3850, 5.250, 0.5, 6 },
|
||||
{ "Screen-Extended High Throughput 4:4:4 14",
|
||||
9, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3500, 3850, 5.250, 0.5, 7 },
|
||||
{ "Main Intra",
|
||||
4, 0, 2, 1, 1, 1, 1, 1, 0, 1, 0, 2, 1000, 1100, 1.500, 1.0, 6 },
|
||||
{ "Main 10 Intra",
|
||||
4, 0, 2, 1, 1, 0, 1, 1, 0, 1, 0, 2, 1000, 1100, 1.875, 1.0, 6 },
|
||||
{ "Main 12 Intra",
|
||||
4, 0, 2, 1, 0, 0, 1, 1, 0, 1, 0, 2, 1500, 1650, 2.250, 1.0, 6 },
|
||||
{ "Main 4:2:2 10 Intra",
|
||||
4, 0, 2, 1, 1, 0, 1, 0, 0, 1, 0, 2, 1667, 1833, 2.500, 0.5, 6 },
|
||||
{ "Main 4:2:2 12 Intra",
|
||||
4, 0, 2, 1, 0, 0, 1, 0, 0, 1, 0, 2, 2000, 2200, 3.000, 0.5, 6 },
|
||||
{ "Main 4:4:4 Intra",
|
||||
4, 0, 2, 1, 1, 1, 0, 0, 0, 1, 0, 2, 2000, 2200, 3.000, 0.5, 6 },
|
||||
{ "Main 4:4:4 10 Intra",
|
||||
4, 0, 2, 1, 1, 0, 0, 0, 0, 1, 0, 2, 2500, 2750, 3.750, 0.5, 6 },
|
||||
{ "Main 4:4:4 12 Intra",
|
||||
4, 0, 2, 1, 0, 0, 0, 0, 0, 1, 0, 2, 3000, 3300, 4.500, 0.5, 6 },
|
||||
{ "Main 4:4:4 16 Intra",
|
||||
4, 0, 2, 0, 0, 0, 0, 0, 0, 1, 0, 2, 4000, 4400, 6.000, 0.5, 6 },
|
||||
{ "Main 4:4:4 Still Picture",
|
||||
4, 0, 2, 1, 1, 1, 0, 0, 0, 1, 1, 2, 2000, 2200, 3.000, 0.5, 6 },
|
||||
{ "Main 4:4:4 16 Still Picture",
|
||||
4, 0, 2, 0, 0, 0, 0, 0, 0, 1, 1, 2, 4000, 4400, 6.000, 0.5, 6 },
|
||||
{ "High Throughput 4:4:4 16 Intra",
|
||||
5, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 4000, 4400, 6.000, 0.5, 6 },
|
||||
};
|
||||
|
||||
|
||||
const H265ProfileDescriptor *ff_h265_get_profile(const H265RawProfileTierLevel *ptl) {
|
||||
int i;
|
||||
|
||||
if(ptl->general_profile_space)
|
||||
return NULL;
|
||||
|
||||
for(i = 0; i < FF_ARRAY_ELEMS(h265_profiles); i++) {
|
||||
const H265ProfileDescriptor *profile = &h265_profiles[i];
|
||||
|
||||
if(ptl->general_profile_idc &&
|
||||
ptl->general_profile_idc != profile->profile_idc)
|
||||
continue;
|
||||
if(!ptl->general_profile_compatibility_flag[profile->profile_idc])
|
||||
continue;
|
||||
|
||||
#define check_flag(name) \
|
||||
if(profile->name < 2) { \
|
||||
if(profile->name != ptl->general_##name##_constraint_flag) \
|
||||
continue; \
|
||||
}
|
||||
check_flag(max_14bit);
|
||||
check_flag(max_12bit);
|
||||
check_flag(max_10bit);
|
||||
check_flag(max_8bit);
|
||||
check_flag(max_422chroma);
|
||||
check_flag(max_420chroma);
|
||||
check_flag(max_monochrome);
|
||||
check_flag(intra);
|
||||
check_flag(one_picture_only);
|
||||
check_flag(lower_bit_rate);
|
||||
#undef check_flag
|
||||
|
||||
return profile;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const H265LevelDescriptor *ff_h265_guess_level(const H265RawProfileTierLevel *ptl,
|
||||
int64_t bitrate,
|
||||
int width, int height,
|
||||
int slice_segments,
|
||||
int tile_rows, int tile_cols,
|
||||
int max_dec_pic_buffering) {
|
||||
const H265ProfileDescriptor *profile;
|
||||
int pic_size, tier_flag, lbr_flag, hbr_factor;
|
||||
int i;
|
||||
|
||||
if(ptl)
|
||||
profile = ff_h265_get_profile(ptl);
|
||||
else
|
||||
profile = NULL;
|
||||
if(!profile) {
|
||||
// Default to using multiplication factors for Main profile.
|
||||
profile = &h265_profiles[4];
|
||||
}
|
||||
|
||||
pic_size = width * height;
|
||||
|
||||
if(ptl) {
|
||||
tier_flag = ptl->general_tier_flag;
|
||||
lbr_flag = ptl->general_lower_bit_rate_constraint_flag;
|
||||
}
|
||||
else {
|
||||
tier_flag = 0;
|
||||
lbr_flag = profile->lower_bit_rate > 0;
|
||||
}
|
||||
if(profile->profile_idc == 1 || profile->profile_idc == 2) {
|
||||
hbr_factor = 1;
|
||||
}
|
||||
else if(profile->high_throughput) {
|
||||
if(profile->intra)
|
||||
hbr_factor = 24 - 12 * lbr_flag;
|
||||
else
|
||||
hbr_factor = 6;
|
||||
}
|
||||
else {
|
||||
hbr_factor = 2 - lbr_flag;
|
||||
}
|
||||
|
||||
for(i = 0; i < FF_ARRAY_ELEMS(h265_levels); i++) {
|
||||
const H265LevelDescriptor *level = &h265_levels[i];
|
||||
int max_br, max_dpb_size;
|
||||
|
||||
if(tier_flag && !level->max_br_high)
|
||||
continue;
|
||||
|
||||
if(pic_size > level->max_luma_ps)
|
||||
continue;
|
||||
if(width * width > 8 * level->max_luma_ps)
|
||||
continue;
|
||||
if(height * height > 8 * level->max_luma_ps)
|
||||
continue;
|
||||
|
||||
if(slice_segments > level->max_slice_segments_per_picture)
|
||||
continue;
|
||||
if(tile_rows > level->max_tile_rows)
|
||||
continue;
|
||||
if(tile_cols > level->max_tile_cols)
|
||||
continue;
|
||||
|
||||
if(tier_flag)
|
||||
max_br = level->max_br_high;
|
||||
else
|
||||
max_br = level->max_br_main;
|
||||
if(!max_br)
|
||||
continue;
|
||||
if(bitrate > (int64_t)profile->cpb_nal_factor * hbr_factor * max_br)
|
||||
continue;
|
||||
|
||||
if(pic_size <= (level->max_luma_ps >> 2))
|
||||
max_dpb_size = FFMIN(4 * profile->max_dpb_pic_buf, 16);
|
||||
else if(pic_size <= (level->max_luma_ps >> 1))
|
||||
max_dpb_size = FFMIN(2 * profile->max_dpb_pic_buf, 16);
|
||||
else if(pic_size <= (3 * level->max_luma_ps >> 2))
|
||||
max_dpb_size = FFMIN(4 * profile->max_dpb_pic_buf / 3, 16);
|
||||
else
|
||||
max_dpb_size = profile->max_dpb_pic_buf;
|
||||
if(max_dec_pic_buffering > max_dpb_size)
|
||||
continue;
|
||||
|
||||
return level;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
Reference in New Issue
Block a user