GF_Err gf_rtp_streamer_send_data(GF_RTPStreamer *rtp, char *data, u32 size, u32 fullsize, u64 cts, u64 dts, Bool is_rap, Bool au_start, Bool au_end, u32 au_sn, u32 sampleDuration, u32 sampleDescIndex) { rtp->packetizer->sl_header.compositionTimeStamp = (u64) (cts*rtp->ts_scale); rtp->packetizer->sl_header.decodingTimeStamp = (u64) (dts*rtp->ts_scale); rtp->packetizer->sl_header.randomAccessPointFlag = is_rap; rtp->packetizer->sl_header.accessUnitStartFlag = au_start; rtp->packetizer->sl_header.accessUnitEndFlag = au_end; rtp->packetizer->sl_header.randomAccessPointFlag = is_rap; rtp->packetizer->sl_header.AU_sequenceNumber = au_sn; sampleDuration = (u32) (sampleDuration * rtp->ts_scale); return gf_rtp_builder_process(rtp->packetizer, data, size, (u8) au_end, fullsize, sampleDuration, sampleDescIndex); }
GF_EXPORT GF_Err gf_hinter_track_process(GF_RTPHinter *tkHint) { GF_Err e; u32 i, descIndex, duration; u64 ts; u8 PadBits; Double ft; GF_ISOSample *samp; tkHint->HintSample = tkHint->RTPTime = 0; tkHint->TotalSample = gf_isom_get_sample_count(tkHint->file, tkHint->TrackNum); ft = tkHint->rtp_p->sl_config.timestampResolution; ft /= tkHint->OrigTimeScale; e = GF_OK; for (i=0; i<tkHint->TotalSample; i++) { samp = gf_isom_get_sample(tkHint->file, tkHint->TrackNum, i+1, &descIndex); if (!samp) return GF_IO_ERR; //setup SL tkHint->CurrentSample = i + 1; /*keep same AU indicator if sync shadow - TODO FIXME: this assumes shadows are placed interleaved with the track content which is the case for GPAC scene carousel generation, but may not always be true*/ if (samp->IsRAP==2) { tkHint->rtp_p->sl_header.AU_sequenceNumber -= 1; samp->IsRAP = 1; } ts = (u64) (ft * (s64) (samp->DTS+samp->CTS_Offset)); tkHint->rtp_p->sl_header.compositionTimeStamp = ts; ts = (u64) (ft * (s64)(samp->DTS)); tkHint->rtp_p->sl_header.decodingTimeStamp = ts; tkHint->rtp_p->sl_header.randomAccessPointFlag = samp->IsRAP; tkHint->base_offset_in_sample = 0; /*crypted*/ if (tkHint->rtp_p->slMap.IV_length) { GF_ISMASample *s = gf_isom_get_ismacryp_sample(tkHint->file, tkHint->TrackNum, samp, descIndex); /*one byte take for selective_enc flag*/ if (s->flags & GF_ISOM_ISMA_USE_SEL_ENC) tkHint->base_offset_in_sample += 1; if (s->flags & GF_ISOM_ISMA_IS_ENCRYPTED) tkHint->base_offset_in_sample += s->IV_length + s->KI_length; gf_free(samp->data); samp->data = s->data; samp->dataLength = s->dataLength; gp_rtp_builder_set_cryp_info(tkHint->rtp_p, s->IV, (char*)s->key_indicator, (s->flags & GF_ISOM_ISMA_IS_ENCRYPTED) ? 1 : 0); s->data = NULL; s->dataLength = 0; gf_isom_ismacryp_delete_sample(s); } if (tkHint->rtp_p->sl_config.usePaddingFlag) { gf_isom_get_sample_padding_bits(tkHint->file, tkHint->TrackNum, i+1, &PadBits); tkHint->rtp_p->sl_header.paddingBits = PadBits; } else { tkHint->rtp_p->sl_header.paddingBits = 0; } duration = gf_isom_get_sample_duration(tkHint->file, tkHint->TrackNum, i+1); ts = (u32) (ft * (s64) (duration)); /*unpack nal units*/ if (tkHint->avc_nalu_size) { u32 v, size; u32 remain = samp->dataLength; char *ptr = samp->data; tkHint->rtp_p->sl_header.accessUnitStartFlag = 1; tkHint->rtp_p->sl_header.accessUnitEndFlag = 0; while (remain) { size = 0; v = tkHint->avc_nalu_size; while (v) { size |= (u8) *ptr; ptr++; remain--; v-=1; if (v) size<<=8; } tkHint->base_offset_in_sample = samp->dataLength-remain; remain -= size; tkHint->rtp_p->sl_header.accessUnitEndFlag = remain ? 0 : 1; e = gf_rtp_builder_process(tkHint->rtp_p, ptr, size, (u8) !remain, samp->dataLength, duration, (u8) (descIndex + GF_RTP_TX3G_SIDX_OFFSET) ); ptr += size; tkHint->rtp_p->sl_header.accessUnitStartFlag = 0; } } else { e = gf_rtp_builder_process(tkHint->rtp_p, samp->data, samp->dataLength, 1, samp->dataLength, duration, (u8) (descIndex + GF_RTP_TX3G_SIDX_OFFSET) ); } tkHint->rtp_p->sl_header.packetSequenceNumber += 1; //signal some progress gf_set_progress("Hinting", tkHint->CurrentSample, tkHint->TotalSample); tkHint->rtp_p->sl_header.AU_sequenceNumber += 1; gf_isom_sample_del(&samp); if (e) return e; } //flush gf_rtp_builder_process(tkHint->rtp_p, NULL, 0, 1, 0, 0, 0); gf_isom_end_hint_sample(tkHint->file, tkHint->HintTrack, (u8) tkHint->SampleIsRAP); return GF_OK; }