| /* $Id$ */ |
| /* |
| * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| * |
| * This program 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 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program 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 this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| #ifndef __PJMEDIA_VID_CODEC_UTIL_H__ |
| #define __PJMEDIA_VID_CODEC_UTIL_H__ |
| |
| |
| /** |
| * @file vid_codec_util.h |
| * @brief Video codec utilities. |
| */ |
| |
| #include <pjmedia/vid_codec.h> |
| #include <pjmedia/sdp_neg.h> |
| |
| PJ_BEGIN_DECL |
| |
| |
| /** |
| * Definition of H.263 parameters. |
| */ |
| typedef struct pjmedia_vid_codec_h263_fmtp |
| { |
| unsigned mpi_cnt; /**< # of parsed MPI param */ |
| struct mpi { |
| pjmedia_rect_size size; /**< Picture size/resolution */ |
| unsigned val; /**< MPI value */ |
| } mpi[32]; /**< Minimum Picture Interval parameter */ |
| |
| } pjmedia_vid_codec_h263_fmtp; |
| |
| |
| /** |
| * Parse SDP fmtp of H.263. |
| * |
| * @param fmtp The H.263 SDP fmtp to be parsed. |
| * @param h263_fmtp The parsing result. |
| * |
| * @return PJ_SUCCESS on success. |
| */ |
| PJ_DECL(pj_status_t) pjmedia_vid_codec_h263_parse_fmtp( |
| const pjmedia_codec_fmtp *fmtp, |
| pjmedia_vid_codec_h263_fmtp *h263_fmtp); |
| |
| |
| /** |
| * Parse, negotiate, and apply the encoding and decoding SDP fmtp of H.263 |
| * in the specified codec parameter. |
| * |
| * @param param The codec parameter. |
| * |
| * @return PJ_SUCCESS on success. |
| */ |
| PJ_DECL(pj_status_t) pjmedia_vid_codec_h263_apply_fmtp( |
| pjmedia_vid_codec_param *param); |
| |
| |
| /** |
| * Definition of H.264 parameters. |
| */ |
| typedef struct pjmedia_vid_codec_h264_fmtp |
| { |
| /* profile-level-id */ |
| pj_uint8_t profile_idc; /**< Profile ID */ |
| pj_uint8_t profile_iop; /**< Profile constraints bits */ |
| pj_uint8_t level; /**< Level */ |
| |
| /* packetization-mode */ |
| pj_uint8_t packetization_mode; /**< Packetization mode */ |
| |
| /* max-mbps, max-fs, max-cpb, max-dpb, and max-br */ |
| unsigned max_mbps; /**< Max macroblock processing rate */ |
| unsigned max_fs; /**< Max frame size (in macroblocks) */ |
| unsigned max_cpb; /**< Max coded picture buffer size */ |
| unsigned max_dpb; /**< Max decoded picture buffer size */ |
| unsigned max_br; /**< Max video bit rate */ |
| |
| /* sprop-parameter-sets, in NAL units */ |
| pj_size_t sprop_param_sets_len; /**< Parameter set length */ |
| pj_uint8_t sprop_param_sets[256]; /**< Parameter set (SPS & PPS), |
| in NAL unit bitstream */ |
| |
| } pjmedia_vid_codec_h264_fmtp; |
| |
| |
| /** |
| * Parse SDP fmtp of H.264. |
| * |
| * @param fmtp The H.264 SDP fmtp to be parsed. |
| * @param h264_fmtp The parsing result. |
| * |
| * @return PJ_SUCCESS on success. |
| */ |
| PJ_DECL(pj_status_t) pjmedia_vid_codec_h264_parse_fmtp( |
| const pjmedia_codec_fmtp *fmtp, |
| pjmedia_vid_codec_h264_fmtp *h264_fmtp); |
| |
| |
| /** |
| * Match H.264 format in the SDP media offer and answer. This will compare |
| * H.264 identifier parameters in SDP fmtp, i.e: "profile-level-id" and |
| * "packetization-mode" fields. For better interoperability, when the option |
| * #PJMEDIA_SDP_NEG_FMT_MATCH_ALLOW_MODIFY_ANSWER is set, this function |
| * may update the answer so the parameters in the answer match to ones |
| * in the offer. |
| * |
| * @param pool The memory pool. |
| * @param offer The SDP media offer. |
| * @param o_fmt_idx Index of the H.264 format in the SDP media offer. |
| * @param answer The SDP media answer. |
| * @param a_fmt_idx Index of the H.264 format in the SDP media answer. |
| * @param option The format matching option, see |
| * #pjmedia_sdp_neg_fmt_match_flag. |
| * |
| * @return PJ_SUCCESS when the formats in offer and answer match. |
| */ |
| PJ_DECL(pj_status_t) pjmedia_vid_codec_h264_match_sdp( |
| pj_pool_t *pool, |
| pjmedia_sdp_media *offer, |
| unsigned o_fmt_idx, |
| pjmedia_sdp_media *answer, |
| unsigned a_fmt_idx, |
| unsigned option); |
| |
| |
| /** |
| * Parse and apply the encoding and decoding SDP fmtp of H.264 in the |
| * specified codec parameter. This will validate size and fps to conform |
| * to H.264 level specified in SDP fmtp "profile-level-id". |
| * |
| * @param param The codec parameter. |
| * |
| * @return PJ_SUCCESS on success. |
| */ |
| PJ_DECL(pj_status_t) pjmedia_vid_codec_h264_apply_fmtp( |
| pjmedia_vid_codec_param *param); |
| |
| |
| PJ_END_DECL |
| |
| |
| #endif /* __PJMEDIA_VID_CODEC_UTIL_H__ */ |