static pj_status_t h264_preopen(openh264_private *ff) { h264_data *data; pjmedia_h264_packetizer_cfg pktz_cfg; pj_status_t status; data = PJ_POOL_ZALLOC_T(ff->pool, h264_data); ff->data = data; /* Parse remote fmtp */ status = pjmedia_vid_codec_h264_parse_fmtp(&ff->param.enc_fmtp, &data->fmtp); if (status != PJ_SUCCESS) return status; /* Create packetizer */ pktz_cfg.mtu = ff->param.enc_mtu; if (data->fmtp.packetization_mode!= PJMEDIA_H264_PACKETIZER_MODE_SINGLE_NAL && data->fmtp.packetization_mode!= PJMEDIA_H264_PACKETIZER_MODE_NON_INTERLEAVED) { return PJ_ENOTSUP; } /* Better always send in single NAL mode for better compatibility */ pktz_cfg.mode = PJMEDIA_H264_PACKETIZER_MODE_SINGLE_NAL; status = pjmedia_h264_packetizer_create(ff->pool, &pktz_cfg, &data->pktz); if (status != PJ_SUCCESS) return status; /* Apply SDP fmtp to format in codec param */ if (!ff->param.ignore_fmtp) { status = pjmedia_vid_codec_h264_apply_fmtp(&ff->param); if (status != PJ_SUCCESS) return status; } return PJ_SUCCESS; }
static pj_status_t h264_preopen(ffmpeg_private *ff) { h264_data *data; pjmedia_h264_packetizer_cfg pktz_cfg; pj_status_t status; data = PJ_POOL_ZALLOC_T(ff->pool, h264_data); ff->data = data; /* Parse remote fmtp */ status = pjmedia_vid_codec_h264_parse_fmtp(&ff->param.enc_fmtp, &data->fmtp); if (status != PJ_SUCCESS) return status; /* Create packetizer */ pktz_cfg.mtu = ff->param.enc_mtu; #if 0 if (data->fmtp.packetization_mode == 0) pktz_cfg.mode = PJMEDIA_H264_PACKETIZER_MODE_SINGLE_NAL; else if (data->fmtp.packetization_mode == 1) pktz_cfg.mode = PJMEDIA_H264_PACKETIZER_MODE_NON_INTERLEAVED; else return PJ_ENOTSUP; #else if (data->fmtp.packetization_mode!= PJMEDIA_H264_PACKETIZER_MODE_SINGLE_NAL && data->fmtp.packetization_mode!= PJMEDIA_H264_PACKETIZER_MODE_NON_INTERLEAVED) { return PJ_ENOTSUP; } /* Better always send in single NAL mode for better compatibility */ pktz_cfg.mode = PJMEDIA_H264_PACKETIZER_MODE_SINGLE_NAL; #endif status = pjmedia_h264_packetizer_create(ff->pool, &pktz_cfg, &data->pktz); if (status != PJ_SUCCESS) return status; /* Apply SDP fmtp to format in codec param */ if (!ff->param.ignore_fmtp) { status = pjmedia_vid_codec_h264_apply_fmtp(&ff->param); if (status != PJ_SUCCESS) return status; } if (ff->param.dir & PJMEDIA_DIR_ENCODING) { pjmedia_video_format_detail *vfd; AVCodecContext *ctx = ff->enc_ctx; const char *profile = NULL; vfd = pjmedia_format_get_video_format_detail(&ff->param.enc_fmt, PJ_TRUE); /* Override generic params after applying SDP fmtp */ ctx->width = vfd->size.w; ctx->height = vfd->size.h; ctx->time_base.num = vfd->fps.denum; ctx->time_base.den = vfd->fps.num; /* Apply profile. */ ctx->profile = data->fmtp.profile_idc; switch (ctx->profile) { case PROFILE_H264_BASELINE: profile = "baseline"; break; case PROFILE_H264_MAIN: profile = "main"; break; default: break; } if (profile && av_set_string3(ctx->priv_data, "profile", profile, 0, NULL)) { PJ_LOG(3, (THIS_FILE, "Failed to set H264 profile")); } /* Apply profile constraint bits. */ //PJ_TODO(set_h264_constraint_bits_properly_in_ffmpeg); if (data->fmtp.profile_iop) { #if defined(FF_PROFILE_H264_CONSTRAINED) ctx->profile |= FF_PROFILE_H264_CONSTRAINED; #endif } /* Apply profile level. */ ctx->level = data->fmtp.level; /* Limit NAL unit size as we prefer single NAL unit packetization */ if (!av_set_int(ctx->priv_data, "slice-max-size", ff->param.enc_mtu)) { PJ_LOG(3, (THIS_FILE, "Failed to set H264 max NAL size to %d", ff->param.enc_mtu)); } /* Apply intra-refresh */ if (!av_set_int(ctx->priv_data, "intra-refresh", 1)) { PJ_LOG(3, (THIS_FILE, "Failed to set x264 intra-refresh")); } /* Misc x264 settings (performance, quality, latency, etc). * Let's just use the x264 predefined preset & tune. */ if (av_set_string3(ctx->priv_data, "preset", "veryfast", 0, NULL)) { PJ_LOG(3, (THIS_FILE, "Failed to set x264 preset 'veryfast'")); } if (av_set_string3(ctx->priv_data, "tune", "animation+zerolatency", 0, NULL)) { PJ_LOG(3, (THIS_FILE, "Failed to set x264 tune 'zerolatency'")); } } if (ff->param.dir & PJMEDIA_DIR_DECODING) { AVCodecContext *ctx = ff->dec_ctx; /* Apply the "sprop-parameter-sets" fmtp from remote SDP to * extradata of ffmpeg codec context. */ if (data->fmtp.sprop_param_sets_len) { ctx->extradata_size = data->fmtp.sprop_param_sets_len; ctx->extradata = data->fmtp.sprop_param_sets; } } return PJ_SUCCESS; }