| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
| * express or implied. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * ------------------------------------------------------------------- |
| */ |
| #include "m4v_media_info_parser.h" |
| #include "oscl_string_utils.h" |
| #include "oscl_string_containers.h" |
| |
| SDP_ERROR_CODE |
| SDPMPEG4MediaInfoParser::parseMediaInfo(const char *buff, const int index, SDPInfo *sdp, payloadVector payload_vec, bool isSipSdp, int alt_id, bool alt_def_id) |
| { |
| |
| const char *current_start = buff; //Pointer to the beginning of the media text |
| const char *end = buff + index; //Pointer to the end of the media text |
| const char *line_start_ptr, *line_end_ptr; |
| int VOLLength = 0; |
| int fmtp_cnt = 0 ; |
| bool framesize_found_in_fmtp = false; |
| SDPAllocDestructDealloc<uint8> SDP_alloc; |
| |
| |
| while (get_next_line(current_start, end, |
| line_start_ptr, line_end_ptr)) |
| { |
| if ((!oscl_strncmp(line_start_ptr, "a=alt:", oscl_strlen("a=alt:"))) && (alt_def_id == false)) |
| { |
| line_start_ptr += oscl_strlen("a=alt:"); |
| for (; *line_start_ptr != ':'; line_start_ptr++); |
| line_start_ptr = line_start_ptr + 1; |
| } |
| if (!oscl_strncmp(line_start_ptr, "a=fmtp:", oscl_strlen("a=fmtp:"))) |
| { |
| char *tmp_start_line, *tmp_end_line; |
| fmtp_cnt++ ; |
| |
| tmp_start_line = (char *)line_start_ptr + oscl_strlen("a=fmtp:"); |
| tmp_start_line = (char *)skip_whitespace(tmp_start_line, line_end_ptr); |
| if (tmp_start_line >= line_end_ptr) |
| { |
| break; |
| } |
| tmp_end_line = (char *)skip_to_whitespace(tmp_start_line, line_end_ptr); |
| if (tmp_end_line < tmp_start_line) |
| { |
| break; |
| } |
| tmp_start_line = tmp_end_line + 1; |
| tmp_start_line = (char *)skip_whitespace(tmp_start_line, line_end_ptr); |
| if (tmp_start_line >= line_end_ptr) |
| { |
| break; |
| } |
| int ii = 0; |
| const char *temp = tmp_start_line; |
| for (ii = 0; ii < (line_end_ptr - tmp_start_line) ; ii++) |
| { |
| if ((tmp_start_line[ii] == ';') || (ii == (line_end_ptr - tmp_start_line - 1))) |
| { |
| tmp_end_line = tmp_start_line + ii; |
| if ((line_end_ptr - tmp_start_line - 1) == ii) |
| { |
| tmp_end_line++; |
| } |
| if (!oscl_strncmp(temp, "config=", oscl_strlen("config="))) |
| { |
| int currentVOLLength; |
| temp += oscl_strlen("config="); |
| temp = skip_whitespace(temp, line_end_ptr); |
| if (temp >= line_end_ptr) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - Bad config field")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| |
| currentVOLLength = (int)(tmp_end_line - temp) / 2; |
| if (VOLLength < currentVOLLength) |
| VOLLength = currentVOLLength; |
| } |
| if (tmp_end_line != line_end_ptr) temp = tmp_end_line + 1; |
| temp = skip_whitespace(temp, line_end_ptr); |
| if (temp >= line_end_ptr) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| |
| } |
| } |
| } |
| |
| |
| current_start = line_end_ptr + 1; |
| } |
| |
| if (fmtp_cnt == 0 && isSipSdp == false) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - No fmtp line found")); |
| return SDP_BAD_MEDIA_FORMAT; |
| } |
| |
| if (VOLLength < 0) |
| { |
| VOLLength = 0; |
| } |
| |
| bool altMedia = false; |
| if (!alt_id || (alt_def_id == true)) |
| altMedia = false; |
| else |
| altMedia = true; |
| |
| void *memory = sdp->alloc(sizeof(m4v_mediaInfo), altMedia); |
| if (NULL == memory) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - memory allocation failure")); |
| return SDP_NO_MEMORY; |
| } |
| else |
| { |
| m4v_mediaInfo *m4Video = OSCL_PLACEMENT_NEW(memory, m4v_mediaInfo()); |
| |
| m4Video->setMediaInfoID(sdp->getMediaObjectIndex()); |
| |
| // Allocate memory to the payload specific objects |
| for (uint32 ii = 0; ii < payload_vec.size(); ii++) |
| { |
| void* mem = m4Video->alloc(sizeof(M4vPayloadSpecificInfoType)); |
| if (mem == NULL) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Memory allocation failure")); |
| return SDP_NO_MEMORY; |
| } |
| else |
| { |
| M4vPayloadSpecificInfoType* payload = OSCL_PLACEMENT_NEW(mem, M4vPayloadSpecificInfoType(payload_vec[ii])); |
| (void) payload; |
| } |
| } |
| |
| |
| if (alt_id && !alt_def_id) |
| { |
| sdp->copyFmDefMedia(m4Video); |
| //empty alternate & default track ID vectors. |
| m4Video->resetAlternateTrackId(); |
| m4Video->resetDependentTrackId(); |
| } |
| |
| SDP_ERROR_CODE status = baseMediaInfoParser(buff, m4Video, index, alt_id, alt_def_id, isSipSdp); |
| if (status != SDP_SUCCESS) |
| { |
| return status; |
| } |
| |
| current_start = buff; |
| |
| |
| while (get_next_line(current_start, end, |
| line_start_ptr, line_end_ptr)) |
| { |
| switch (*line_start_ptr) |
| { |
| case 'a': |
| { |
| const char *sptr; |
| if ((!oscl_strncmp(line_start_ptr, "a=alt:", oscl_strlen("a=alt:"))) && (alt_def_id == false)) |
| { |
| line_start_ptr += oscl_strlen("a=alt:"); |
| for (; *line_start_ptr != ':'; line_start_ptr++); |
| line_start_ptr = line_start_ptr + 1; |
| } |
| if (!oscl_strncmp(line_start_ptr, "a=framerate:", oscl_strlen("a=framerate:"))) |
| { |
| sptr = line_start_ptr + oscl_strlen("a=framerate:"); |
| sptr = skip_whitespace(sptr, line_end_ptr); |
| if (sptr >= line_end_ptr) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=framerate line format")); |
| return SDP_BAD_MEDIA_FRAME_RATE; |
| } |
| OsclFloat rate; |
| if (!PV_atof(sptr, line_end_ptr - sptr, rate)) |
| return SDP_BAD_MEDIA_FORMAT; |
| ((m4v_mediaInfo *)m4Video)->setFrameRate(rate); |
| } |
| if (!oscl_strncmp(line_start_ptr, "a=I_frame_interval:", oscl_strlen("a=I_frame_interval:"))) |
| { |
| sptr = line_start_ptr + oscl_strlen("a=I_frame_interval:"); |
| sptr = skip_whitespace(sptr, line_end_ptr); |
| if (sptr >= line_end_ptr) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=I_frame_interval line format")); |
| return SDP_BAD_MEDIA_FRAME_INTERVAL; |
| } |
| uint32 ifi; |
| if (PV_atoi(sptr, 'd', (line_end_ptr - sptr), ifi) == true)((m4v_mediaInfo *)m4Video)->setIFrameInterval(ifi); |
| } |
| if (!oscl_strncmp(line_start_ptr, "a=fmtp:", oscl_strlen("a=fmtp:"))) |
| { |
| const char *tmp_start_line, *tmp_end_line; |
| tmp_start_line = line_start_ptr + oscl_strlen("a=fmtp:"); |
| tmp_start_line = skip_whitespace(tmp_start_line, line_end_ptr); |
| if (tmp_start_line >= line_end_ptr) |
| { |
| break; |
| } |
| tmp_end_line = skip_to_whitespace(tmp_start_line, line_end_ptr); |
| if (tmp_end_line < tmp_start_line) |
| { |
| break; |
| } |
| uint32 payloadNumber; |
| if (PV_atoi(tmp_start_line, 'd', (tmp_end_line - tmp_start_line), payloadNumber) == false) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - Bad payload number")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| else |
| { |
| int p; |
| if (!m4Video->lookupPayloadNumber(payloadNumber, p)) |
| { |
| fmtp_cnt--; |
| break; |
| } |
| } |
| |
| M4vPayloadSpecificInfoType* payloadPtr = |
| (M4vPayloadSpecificInfoType*)m4Video->getPayloadSpecificInfoTypePtr(payloadNumber); |
| if (payloadPtr == NULL) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - payload pointer not found for payload")); |
| return SDP_PAYLOAD_MISMATCH; |
| } |
| |
| PVMF_SDP_PARSER_LOGINFO((0, "SDPM4VMediaInfoParser::parseMediaInfo - processing payload number : %d", payloadNumber)); |
| |
| tmp_start_line = tmp_end_line + 1; |
| tmp_start_line = skip_whitespace(tmp_start_line, line_end_ptr); |
| if (tmp_start_line >= line_end_ptr) |
| { |
| break; |
| } |
| int ii = 0; |
| const char *temp = tmp_start_line; |
| for (ii = 0; ii < (line_end_ptr - tmp_start_line) ; ii++) |
| { |
| if ((tmp_start_line[ii] == ';') || (ii == (line_end_ptr - tmp_start_line - 1))) |
| { |
| tmp_end_line = tmp_start_line + ii; |
| if (ii == (line_end_ptr - tmp_start_line - 1)) |
| { |
| tmp_end_line += 1; |
| } |
| if (!oscl_strncmp(temp, "config=", oscl_strlen("config="))) |
| { |
| uint8 *mptr = SDP_alloc.allocate(VOLLength); |
| OsclRefCounterSA< SDPAllocDestructDealloc<uint8> > *refcnt = new OsclRefCounterSA< SDPAllocDestructDealloc<uint8> >(mptr); |
| OsclSharedPtr<uint8> VOLPtr(mptr, refcnt); |
| |
| temp += oscl_strlen("config="); |
| temp = skip_whitespace(temp, line_end_ptr); |
| if (temp >= line_end_ptr) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - Bad config field")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| VOLLength = (int)(tmp_end_line - temp) / 2; |
| int idx = 0; |
| for (idx = 0; idx < VOLLength; idx++) |
| { |
| uint32 val; |
| //Set this value in the vol header array |
| if (PV_atoi((temp + 2*idx), 'x', 2 , val) == false) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - Bad config field")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| |
| *(VOLPtr + idx) = (uint8)val; |
| |
| } |
| |
| payloadPtr->setVOLHeader(VOLPtr); |
| payloadPtr->setVOLHeaderSize(VOLLength); |
| payloadPtr->setDecoderSpecificInfo(VOLPtr); |
| payloadPtr->setDecoderSpecificInfoSize(VOLLength); |
| |
| } |
| if (!oscl_strncmp(temp, "profile-level-id=", oscl_strlen("profile-level-id="))) |
| { |
| temp += oscl_strlen("profile-level-id="); |
| temp = skip_whitespace(temp, line_end_ptr); |
| if (temp > line_end_ptr) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - Bad profile-level-id field")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| uint32 pl; |
| if (PV_atoi(temp, 'd', tmp_end_line - temp , pl) == true) |
| payloadPtr->setProfileLevelID(pl); |
| |
| } |
| if (!oscl_strncmp(temp, "framesize=", oscl_strlen("framesize="))) |
| { |
| temp += oscl_strlen("framesize="); |
| temp = skip_whitespace(temp, tmp_end_line); |
| framesize_found_in_fmtp = true; |
| if (temp > tmp_end_line) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - Bad framesize field")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| const char *end = NULL; |
| int idx = 0; |
| for (idx = 0; idx < (tmp_end_line - temp); idx++) |
| { |
| if (temp[idx] == '-') |
| { |
| end = temp + idx; |
| } |
| } |
| if (end == NULL) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - framesize width info missing")); |
| return SDP_MISSING_MEDIA_DESCRIPTION; |
| } |
| uint32 width; |
| if (PV_atoi(temp, 'd', (end - temp), width) == true) |
| payloadPtr->setFrameWidth(width); |
| temp = end + 1; |
| temp = skip_whitespace(temp, tmp_end_line); |
| if (temp > tmp_end_line) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - framesize height info missing")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| uint32 height; |
| if (PV_atoi(temp, 'd', tmp_end_line - temp, height) == true) |
| payloadPtr->setFrameHeight(height); |
| } |
| if (!oscl_strncmp(temp, "decode_buf=", oscl_strlen("decode_buf="))) |
| { |
| temp += oscl_strlen("decode_buf="); |
| temp = skip_whitespace(temp, tmp_end_line); |
| if (temp > tmp_end_line) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format - Bad decode_buf field")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| uint32 dec; |
| if (PV_atoi(temp, 'd', tmp_end_line - temp, dec) == true) |
| payloadPtr->setMaxBufferSize(dec); |
| } |
| if (tmp_end_line != line_end_ptr) temp = tmp_end_line + 1; |
| temp = skip_whitespace(temp, line_end_ptr); |
| if (temp >= line_end_ptr) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=fmtp line format")); |
| return SDP_BAD_MEDIA_FMTP; |
| } |
| } |
| } |
| } |
| StrPtrLen fmsize("a=framesize:"); |
| if (!oscl_strncmp(line_start_ptr, fmsize.c_str(), fmsize.length())) |
| { |
| uint32 width, height; |
| const char *sptr = line_start_ptr + fmsize.length(); |
| const char *eptr = skip_to_whitespace(sptr, line_end_ptr); |
| |
| |
| if (sptr > eptr) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=framesize line format")); |
| return SDP_BAD_MEDIA_FRAMESIZE; |
| } |
| uint32 payloadNo; |
| if (PV_atoi(sptr, 'd', (eptr - sptr), payloadNo)) |
| { |
| int p; |
| if (!((m4v_mediaInfo *)m4Video)->lookupPayloadNumber(payloadNo, p)) |
| break; |
| |
| } |
| else |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=framesize line format - Bad payload number")); |
| return SDP_BAD_MEDIA_FRAMESIZE; |
| } |
| |
| M4vPayloadSpecificInfoType* payloadPtr2 = |
| (M4vPayloadSpecificInfoType*)m4Video->getPayloadSpecificInfoTypePtr(payloadNo); |
| if (payloadPtr2 == NULL) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=framesize line format - payload pointer not found for payload")); |
| return SDP_PAYLOAD_MISMATCH; |
| } |
| |
| sptr = eptr; |
| sptr = skip_whitespace(sptr , line_end_ptr); |
| |
| for (; *eptr != '-' ; ++eptr); |
| |
| if (!PV_atoi(sptr, 'd', eptr - sptr, width)) |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - Bad a=framesize line format")); |
| return SDP_BAD_MEDIA_FRAMESIZE; |
| } |
| |
| eptr = eptr + 1; |
| sptr = eptr; |
| if (sptr > line_end_ptr) |
| return SDP_BAD_MEDIA_FRAMESIZE; |
| eptr = skip_to_line_term(sptr, line_end_ptr); |
| if (!PV_atoi(sptr, 'd', eptr - sptr, height)) |
| return SDP_BAD_MEDIA_FRAMESIZE; |
| |
| if (framesize_found_in_fmtp) |
| { |
| if ((int)width != payloadPtr2->getFrameWidth() || (int)height != payloadPtr2->getFrameHeight()) |
| { |
| return SDP_BAD_MEDIA_FRAMESIZE; |
| } |
| |
| } |
| else |
| { |
| payloadPtr2->setFrameWidth(width); |
| payloadPtr2->setFrameHeight(height); |
| } |
| |
| } |
| } |
| break; |
| default: |
| break; |
| } |
| current_start = line_end_ptr; |
| } |
| |
| sessionDescription *session = sdp->getSessionInfo(); |
| |
| const char *altGroupBW = session->getAltGroupBW(); |
| int length = session->getAltGroupBWLength(); |
| |
| if (length > 0) |
| { |
| status = setDependentMediaId(altGroupBW, length, m4Video, alt_id); |
| if (status != SDP_SUCCESS) |
| return SDP_BAD_MEDIA_ALT_ID; |
| } |
| |
| const char *altGroupLANG = session->getAltGroupLANG(); |
| length = session->getAltGroupLANGLength(); |
| |
| if (length > 0) |
| { |
| status = setDependentMediaId(altGroupLANG, length, m4Video, alt_id); |
| if (status != SDP_SUCCESS) |
| return SDP_BAD_MEDIA_ALT_ID; |
| } |
| |
| if (m4Video->getCFieldStatus() || session->getCFieldStatus()) |
| { |
| //if sample rate is zero override with defaults |
| Oscl_Vector<PayloadSpecificInfoTypeBase*, SDPParserAlloc> payloadSpecificInfoVector = |
| m4Video->getPayloadSpecificInfoVector(); |
| for (int ii = 0; ii < (int)payloadSpecificInfoVector.size(); ii++) |
| { |
| if (payloadSpecificInfoVector[ii]->getSampleRate() == 0) |
| { |
| payloadSpecificInfoVector[ii]->sampleRate = |
| PVMF_SDP_DEFAULT_MPEG4_VIDEO_SAMPLE_RATE; |
| } |
| } |
| return SDP_SUCCESS; |
| } |
| else |
| { |
| PVMF_SDP_PARSER_LOGERROR((0, "SDPM4VMediaInfoParser::parseMediaInfo - No C field present")); |
| return SDP_FAILURE_NO_C_FIELD; |
| } |
| } |
| |
| } |
| |
