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- /*
- * Copyright (C) 2011 Doubango Telecom <http://www.doubango.org>.
- *
- * Contact: Mamadou Diop <diopmamadou(at)doubango(DOT)org>
- *
- * This file is part of Open Source Doubango Framework.
- *
- * DOUBANGO is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * DOUBANGO is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with DOUBANGO.
- *
- */
- #ifndef TINYDAV_CODEC_H264_COMMON_H
- #define TINYDAV_CODEC_H264_COMMON_H
- #include "tinydav_config.h"
- #include "tinydav/codecs/h264/tdav_codec_h264_rtp.h"
- #include "tinymedia/tmedia_codec.h"
- #include "tinymedia/tmedia_defaults.h"
- #include "tsk_memory.h"
- #include "tsk_string.h"
- #include "tsk_params.h"
- #include "tsk_debug.h"
- #include <string.h>
- TDAV_BEGIN_DECLS
- #if !defined(H264_MAX_BR)
- # define H264_MAX_BR 452
- #endif
- #if !defined(H264_MAX_MBPS)
- # define H264_MAX_MBPS 11880
- #endif
- #if !defined(H264_PACKETIZATION_MODE)
- # if METROPOLIS || 1
- # define H264_PACKETIZATION_MODE Single_NAL_Unit_Mode
- # else
- # define H264_PACKETIZATION_MODE Non_Interleaved_Mode
- #endif
- #endif
- #if !defined(H264_FS_MAX_COUNT)
- # define H264_FS_MAX_COUNT 16 // max number of DPBFS in the list
- #endif
- #if !defined(H264_LEVEL_MAX_COUNT)
- # define H264_LEVEL_MAX_COUNT 16 // Table A-1 – Level limits: "1", "1b"... "5.1"
- #endif
- // Table A-1 – Level limits
- static const int32_t MaxMBPS[H264_LEVEL_MAX_COUNT] = { 1485, 1485, 3000, 6000, 11880, 11880, 19800, 20250, 40500, 108000, 216000, 245760, 245760, 522240, 589824, 983040 };
- static const int32_t MaxFS[H264_LEVEL_MAX_COUNT] = { 99, 99, 396, 396, 396, 396, 792, 1620, 1620, 3600, 5120, 8192, 8192, 8704, 22080, 36864 };
- static const int32_t MaxDpbMbs[H264_LEVEL_MAX_COUNT] = { 396, 396, 900, 2376, 2376, 2376, 4752, 8100, 8100, 18000, 20480, 32768, 32768, 34816, 110400, 184320 };
- static const int32_t MaxBR[H264_LEVEL_MAX_COUNT] = { 64, 128, 192, 384, 768, 2000, 4000, 4000, 10000, 14000, 20000, 20000, 50000, 50000, 135000, 240000 };
- static const int32_t MaxCPB[H264_LEVEL_MAX_COUNT] = { 175, 350, 500, 1000, 2000, 2000, 4000, 4000, 10000, 14000, 20000, 25000, 62500, 62500, 135000, 240000 };
- // From "enum level_idc_e" to zero-based index
- // level_idc = (level.prefix * 10) + level.suffix. For example: 3.1 = 31. Exception for 1b = 9.
- // usage: int32_t maxDpbMbs = MaxDpbMbs[HL_CODEC_264_LEVEL_TO_ZERO_BASED_INDEX[level_idc]];
- static const int32_t H264_LEVEL_TO_ZERO_BASED_INDEX[255] = {
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 2, 3, 4, 4, 4, 4, 4,
- 4, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 9, 10, 10, 10, 10, 10,
- 10, 10, 10, 11, 12, 13, 13, 13, 13, 13, 13, 13, 13, 14, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16
- };
- // Because of FD, declare it here
- typedef enum packetization_mode_e {
- Unknown_Mode = -1,
- Single_NAL_Unit_Mode = 0, /* Single NAL mode (Only nals from 1-23 are allowed) */
- Non_Interleaved_Mode = 1, /* Non-interleaved Mode: 1-23, 24 (STAP-A), 28 (FU-A) are allowed */
- Interleaved_Mode = 2 /* 25 (STAP-B), 26 (MTAP16), 27 (MTAP24), 28 (FU-A), and 29 (FU-B) are allowed.*/
- }
- packetization_mode_t;
- typedef struct tdav_codec_h264_common_s {
- TMEDIA_DECLARE_CODEC_VIDEO;
- profile_idc_t profile;
- uint8_t profile_iop;
- level_idc_t level;
- unsigned maxFS;
- packetization_mode_t pack_mode_remote; // remote packetization mode
- packetization_mode_t pack_mode_local; // local packetization mode
- struct {
- uint8_t* ptr;
- tsk_size_t size;
- } rtp;
- }
- tdav_codec_h264_common_t;
- #define TDAV_CODEC_H264_COMMON(self) ((tdav_codec_h264_common_t*)(self))
- #define TDAV_DECLARE_CODEC_H264_COMMON tdav_codec_h264_common_t __video__
- typedef struct tdav_codec_h264_common_level_size_xs {
- level_idc_t level;
- unsigned width;
- unsigned height;
- unsigned maxFS; // From "Table A-1 – Level limits"
- }
- tdav_codec_h264_common_level_size_xt;
- static const tdav_codec_h264_common_level_size_xt tdav_codec_h264_common_level_sizes [] = {
- {level_idc_1_0, 128, 96, 99},
- #if 0
- {level_idc_1_b, 128, 96, 99},
- #endif
- {level_idc_1_1, 176, 144, 396},
- {level_idc_1_2, 320, 240, 396},
- {level_idc_1_3, 352, 288, 396},
- {level_idc_2_0, 352, 288, 396},
- {level_idc_2_1, 480, 352, 792}, // Swap(352x480)
- {level_idc_2_2, 720, 480, 1620},
- {level_idc_3_0, 720, 576, 1620},
- {level_idc_3_1, 1280, 720, 3600},
- {level_idc_3_2, 1280, 720, 5120},
- {level_idc_4_0, 2048, 1024, 8192},
- {level_idc_4_1, 2048, 1024, 8192},
- {level_idc_4_2, 2048, 1080, 8704},
- {level_idc_5_0, 2560, 1920, 22080},
- {level_idc_5_1, 3840, 2160, 32400},
- {level_idc_5_2, 4096, 2048, 32768}
- };
- static int tdav_codec_h264_common_size_from_level(level_idc_t level, unsigned *width, unsigned *height)
- {
- tsk_size_t i;
- for(i = 0; i < sizeof(tdav_codec_h264_common_level_sizes)/sizeof(tdav_codec_h264_common_level_sizes[0]); ++i) {
- if(tdav_codec_h264_common_level_sizes[i].level == level) {
- *width = tdav_codec_h264_common_level_sizes[i].width;
- *height = tdav_codec_h264_common_level_sizes[i].height;
- return 0;
- }
- }
- return -1;
- }
- static int tdav_codec_h264_common_size_from_fs(unsigned maxFS, unsigned *width, unsigned *height)
- {
- tsk_size_t i;
- int ret = -1;
- for (i = 0; i < sizeof(tdav_codec_h264_common_level_sizes)/sizeof(tdav_codec_h264_common_level_sizes[0]); ++i) {
- if (tdav_codec_h264_common_level_sizes[i].maxFS <= maxFS) {
- *width = tdav_codec_h264_common_level_sizes[i].width;
- *height = tdav_codec_h264_common_level_sizes[i].height;
- ret = 0;
- }
- else {
- break;
- }
- }
- return ret;
- }
- static int tdav_codec_h264_common_level_from_size(unsigned width, unsigned height, level_idc_t *level)
- {
- tsk_size_t i;
- unsigned maxFS = (((width + 15) >> 4) * ((height + 15) >> 4));
- static const tsk_size_t __tdav_codec_h264_common_level_sizes_count = sizeof(tdav_codec_h264_common_level_sizes)/sizeof(tdav_codec_h264_common_level_sizes[0]);
- for (i = 0; i < __tdav_codec_h264_common_level_sizes_count; ++i) {
- if (/*tdav_codec_h264_common_level_sizes[i].maxFS*/ ((tdav_codec_h264_common_level_sizes[i].width * tdav_codec_h264_common_level_sizes[i].height) >> 8) >= maxFS) {
- *level = tdav_codec_h264_common_level_sizes[i].level;
- return 0;
- }
- }
- TSK_DEBUG_WARN("Failed to find default level for size=(%ux%u)", width, height);
- *level = tdav_codec_h264_common_level_sizes[__tdav_codec_h264_common_level_sizes_count - 1].level;
- return 0;
- }
- static int tdav_codec_h264_common_init(tdav_codec_h264_common_t * h264)
- {
- if (h264) {
- level_idc_t level;
- // because at this step 'tmedia_codec_init()' is not called yet and we need default size to compute the H.264 level
- if (TMEDIA_CODEC_VIDEO(h264)->out.width == 0 || TMEDIA_CODEC_VIDEO(h264)->in.width == 0) {
- unsigned width, height;
- tmedia_pref_video_size_t pref_size = tmedia_defaults_get_pref_video_size();
- if (tmedia_video_get_size(pref_size, &width, &height) == 0) {
- TMEDIA_CODEC_VIDEO(h264)->out.width = TMEDIA_CODEC_VIDEO(h264)->in.width = width;
- TMEDIA_CODEC_VIDEO(h264)->out.height = TMEDIA_CODEC_VIDEO(h264)->in.height = height;
- }
- }
- h264->maxFS = (((TMEDIA_CODEC_VIDEO(h264)->out.width + 15) >> 4) * ((TMEDIA_CODEC_VIDEO(h264)->out.height + 15) >> 4));
- if ((tdav_codec_h264_common_level_from_size(TMEDIA_CODEC_VIDEO(h264)->out.width, TMEDIA_CODEC_VIDEO(h264)->out.height, &level)) == 0) {
- h264->maxFS = TSK_MIN((int32_t)h264->maxFS, MaxFS[H264_LEVEL_TO_ZERO_BASED_INDEX[level]]);
- h264->level = level;
- }
- h264->profile_iop = 0x80;
- h264->pack_mode_local = H264_PACKETIZATION_MODE;
- h264->pack_mode_remote = Unknown_Mode;
- }
- return 0;
- }
- static int tdav_codec_h264_common_deinit(tdav_codec_h264_common_t * h264)
- {
- TSK_DEBUG_INFO("tdav_codec_h264_common_deinit");
- if(h264) {
- tmedia_codec_video_deinit(TMEDIA_CODEC_VIDEO(h264));
- TSK_FREE(h264->rtp.ptr);
- h264->rtp.size = 0;
- }
- return 0;
- }
- static int tdav_codec_h264_common_get_profile_and_level(const char* fmtp, profile_idc_t *profile, level_idc_t *level)
- {
- tsk_size_t size = tsk_strlen(fmtp);
- int start, end;
- int ret = -1;
- *profile = profile_idc_none;
- *level = level_idc_none;
- if((start = tsk_strindexOf(fmtp, size, "profile-level-id")) !=-1) {
- tsk_param_t* param;
- if((end = (int)tsk_strindexOf((fmtp+start), (tsk_size_t)(size-start), ";")) == -1) {
- end = (int)size;
- }
- if((param = tsk_params_parse_param((fmtp+start), (end-start)))) {
- profile_idc_t p_idc;
- level_idc_t l_idc;
- if(param->value) {
- tsk_strtrim_both(¶m->value);
- }
- tdav_codec_h264_parse_profile(param->value, &p_idc, tsk_null, &l_idc);
- switch(p_idc) {
- case profile_idc_baseline:
- case profile_idc_main:
- *profile = p_idc;
- *level = l_idc;
- ret = 0;
- break;
- case profile_idc_extended:
- case profile_idc_high:
- default:
- /* Not supported */
- break;
- }
- TSK_OBJECT_SAFE_FREE(param);
- }
- }
- return ret;
- }
- static tsk_bool_t tdav_codec_h264_common_sdp_att_match(tdav_codec_h264_common_t* h264, const char* att_name, const char* att_value)
- {
- tsk_bool_t ret = tsk_true;
- tsk_bool_t outsize_changed = tsk_false;
- if(!h264) {
- TSK_DEBUG_ERROR("Invalid parameter");
- return tsk_false;
- }
- TSK_DEBUG_INFO("[H.264] Trying to match [%s:%s]", att_name, att_value);
- if (tsk_striequals(att_name, "fmtp")) {
- int val_int;
- profile_idc_t profile;
- level_idc_t level;
- tsk_params_L_t* params;
- /* Check whether the profile match (If the profile is missing, then we consider that it's ok) */
- if (tdav_codec_h264_common_get_profile_and_level(att_value, &profile, &level) != 0) {
- TSK_DEBUG_ERROR("Not valid profile-level: %s", att_value);
- return tsk_false;
- }
- if (h264->profile != profile) {
- return tsk_false;
- }
- else {
- if (h264->level != level) {
- // change the output size only when the remote party request lower level. If it request higher (or same) level then, we send our preferred size.
- if (h264->level > level) {
- unsigned width, height;
- h264->level = TSK_MIN(h264->level, level);
- if (tdav_codec_h264_common_size_from_level(h264->level, &width, &height) != 0) {
- return tsk_false;
- }
- // Do not change our size if it match the requested level
- if (width < TMEDIA_CODEC_VIDEO(h264)->out.width || height < TMEDIA_CODEC_VIDEO(h264)->out.height) {
- // Set "out" size. We must not send more than "MaxFS".
- // Default "out" is equal to the preferred sized and initialized in init().
- // "TANDBERG/4120 (X7.2.2)" will terminate the call if frame size > maxFS
- TMEDIA_CODEC_VIDEO(h264)->out.width = TSK_MIN(TMEDIA_CODEC_VIDEO(h264)->out.width, width);
- TMEDIA_CODEC_VIDEO(h264)->out.height = TSK_MIN(TMEDIA_CODEC_VIDEO(h264)->out.height, height);
- outsize_changed = tsk_true;
- }
- // Set default "in". Will be updated after receiving the first frame.
- TMEDIA_CODEC_VIDEO(h264)->in.width = width;
- TMEDIA_CODEC_VIDEO(h264)->in.height = height;
- }
- }
- }
- /* e.g. profile-level-id=42e00a; packetization-mode=1; max-br=452; max-mbps=11880 */
- if ((params = tsk_params_fromstring(att_value, ";", tsk_true))) {
- /* === max-br ===*/
- if ((val_int = tsk_params_get_param_value_as_int(params, "max-br")) != -1) {
- // should compare "max-br"?
- TMEDIA_CODEC_VIDEO(h264)->out.max_br = val_int*1000;
- }
- /* === max-fs ===*/
- if ((val_int = tsk_params_get_param_value_as_int(params, "max-fs")) != -1) {
- unsigned width_max, height_max, maxFS, currFS;
- currFS = (TMEDIA_CODEC_VIDEO(h264)->out.width * TMEDIA_CODEC_VIDEO(h264)->out.height) >> 8;
- maxFS = TSK_MIN(h264->maxFS/*preferred*/, (unsigned)val_int/*proposed*/); // make sure we'll never send more than we advertised
- if (currFS > maxFS) { // do not use default sizes when we already respect the MaxFS
- if (tdav_codec_h264_common_size_from_fs(maxFS, &width_max, &height_max) == 0) {
- TMEDIA_CODEC_VIDEO(h264)->out.width = TMEDIA_CODEC_VIDEO(h264)->in.width = width_max;
- TMEDIA_CODEC_VIDEO(h264)->out.height = TMEDIA_CODEC_VIDEO(h264)->in.height = height_max;
- outsize_changed = tsk_true;
- }
- }
- }
- /* === max-mbps ===*/
- if ((val_int = tsk_params_get_param_value_as_int(params, "max-mbps")) != -1) {
- // should compare "max-mbps"?
- TMEDIA_CODEC_VIDEO(h264)->out.max_mbps = val_int*1000;
- }
- /* === packetization-mode ===*/
- if ((val_int = tsk_params_get_param_value_as_int(params, "packetization-mode")) != -1) {
- if ((packetization_mode_t)val_int == Single_NAL_Unit_Mode || (packetization_mode_t)val_int == Non_Interleaved_Mode) {
- TDAV_CODEC_H264_COMMON(h264)->pack_mode_remote = (packetization_mode_t)val_int;
- TDAV_CODEC_H264_COMMON(h264)->pack_mode_local = TSK_MAX(TDAV_CODEC_H264_COMMON(h264)->pack_mode_local, TDAV_CODEC_H264_COMMON(h264)->pack_mode_remote);
- }
- else {
- TSK_DEBUG_INFO("packetization-mode not matching");
- ret = tsk_false;
- goto bail;
- }
- }
- }
- bail:
- TSK_OBJECT_SAFE_FREE(params);
- }
- else if(tsk_striequals(att_name, "imageattr")) {
- unsigned in_width, in_height, out_width, out_height;
- unsigned width, height;
- tsk_size_t s;
- if(tmedia_parse_video_imageattr(att_value, TMEDIA_CODEC_VIDEO(h264)->pref_size, &in_width, &in_height, &out_width, &out_height) != 0) {
- return tsk_false;
- }
- // check that 'imageattr' is comform to H.264 'profile-level'
- if(tdav_codec_h264_common_size_from_level(h264->level, &width, &height) != 0) {
- return tsk_false;
- }
- if((s = ((width * height * 3) >> 1)) < ((in_width * in_height * 3) >> 1) || s < ((out_width * out_height * 3) >> 1)) {
- return tsk_false;
- }
- TMEDIA_CODEC_VIDEO(h264)->in.width = in_width;
- TMEDIA_CODEC_VIDEO(h264)->in.height = in_height;
- TMEDIA_CODEC_VIDEO(h264)->out.width = out_width;
- TMEDIA_CODEC_VIDEO(h264)->out.height = out_height;
- outsize_changed = tsk_true;
- }
- // clamp the output size to the defined max range
- if (outsize_changed && tmedia_defaults_get_adapt_video_size_range_enabled()) {
- if (tmedia_codec_video_clamp_out_size_to_range_max(TMEDIA_CODEC_VIDEO(h264)) != 0) {
- ret = tsk_false;
- }
- }
- return ret;
- }
- static char* tdav_codec_h264_common_sdp_att_get(const tdav_codec_h264_common_t* h264, const char* att_name)
- {
- if(!h264 || !att_name) {
- TSK_DEBUG_ERROR("Invalid parameter");
- return tsk_null;
- }
- if (tsk_striequals(att_name, "fmtp")) {
- char* fmtp = tsk_null;
- #if 1
- // Required by "TANDBERG/4120 (X7.2.2)" and CISCO TelePresence
- tsk_sprintf(&fmtp, "profile-level-id=%x;max-mbps=%d;max-fs=%d",
- ((h264->profile << 16) | (h264->profile_iop << 8) | (h264->level & 0xff)),
- MaxMBPS[H264_LEVEL_TO_ZERO_BASED_INDEX[h264->level]],
- h264->maxFS
- );
- // Do not restrict packetisation-mode until we knwon what the remote party supports
- if (h264->pack_mode_remote != Unknown_Mode) {
- tsk_strcat_2(&fmtp, ";packetization-mode=%d", h264->pack_mode_local);
- }
- #else
- tsk_sprintf(&fmtp, "profile-level-id=%x; packetization-mode=%d", ((h264->profile << 16) | (h264->profile_iop << 8) | (h264->level & 0xff)), h264->pack_mode);
- #endif
- return fmtp;
- }
- else if(tsk_striequals(att_name, "imageattr")) {
- return tmedia_get_video_imageattr(TMEDIA_CODEC_VIDEO(h264)->pref_size,
- TMEDIA_CODEC_VIDEO(h264)->in.width, TMEDIA_CODEC_VIDEO(h264)->in.height, TMEDIA_CODEC_VIDEO(h264)->out.width, TMEDIA_CODEC_VIDEO(h264)->out.height);
- }
- return tsk_null;
- }
- TDAV_END_DECLS
- #endif /* TINYDAV_CODEC_H264_COMMON_H */
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