ref: 2cff3a9f96eabd25287392db3454bdb40d14f4b2
dir: /common/mp4v2/mp4info.cpp/
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is MPEG4IP.
*
* The Initial Developer of the Original Code is Cisco Systems Inc.
* Portions created by Cisco Systems Inc. are
* Copyright (C) Cisco Systems Inc. 2001-2002. All Rights Reserved.
*
* Contributor(s):
* Dave Mackie dmackie@cisco.com
* Alix Marchandise-Franquet alix@cisco.com
*/
#include "mp4common.h"
static char* PrintAudioInfo(
MP4FileHandle mp4File,
MP4TrackId trackId)
{
static const char* mpeg4AudioNames[] = {
"MPEG-4 Main @ L1",
"MPEG-4 Main @ L2",
"MPEG-4 Main @ L3",
"MPEG-4 Main @ L4",
"MPEG-4 Scalable @ L1",
"MPEG-4 Scalable @ L2",
"MPEG-4 Scalable @ L3",
"MPEG-4 Scalable @ L4",
"MPEG-4 Speech @ L1",
"MPEG-4 Speech @ L2",
"MPEG-4 Synthesis @ L1",
"MPEG-4 Synthesis @ L2",
"MPEG-4 Synthesis @ L3",
};
static u_int8_t numMpeg4AudioTypes =
sizeof(mpeg4AudioNames) / sizeof(char*);
static u_int8_t mpegAudioTypes[] = {
MP4_MPEG2_AAC_MAIN_AUDIO_TYPE, // 0x66
MP4_MPEG2_AAC_LC_AUDIO_TYPE, // 0x67
MP4_MPEG2_AAC_SSR_AUDIO_TYPE, // 0x68
MP4_MPEG2_AUDIO_TYPE, // 0x69
MP4_MPEG1_AUDIO_TYPE, // 0x6B
MP4_PCM16_LITTLE_ENDIAN_AUDIO_TYPE,
MP4_VORBIS_AUDIO_TYPE,
MP4_ALAW_AUDIO_TYPE,
MP4_ULAW_AUDIO_TYPE,
MP4_G723_AUDIO_TYPE,
MP4_PCM16_BIG_ENDIAN_AUDIO_TYPE,
};
static const char* mpegAudioNames[] = {
"MPEG-2 AAC Main",
"MPEG-2 AAC LC",
"MPEG-2 AAC SSR",
"MPEG-2 (MP3)",
"MPEG-1 (MP3)",
"PCM16 (little endian)",
"Vorbis",
"G.711 aLaw",
"G.711 uLaw",
"G.723.1",
"PCM16 (big endian)",
};
static u_int8_t numMpegAudioTypes =
sizeof(mpegAudioTypes) / sizeof(u_int8_t);
u_int8_t type =
MP4GetTrackEsdsObjectTypeId(mp4File, trackId);
const char* typeName = "Unknown";
if (type == MP4_MPEG4_AUDIO_TYPE) {
type = MP4GetAudioProfileLevel(mp4File);
if (type > 0 && type <= numMpeg4AudioTypes) {
typeName = mpeg4AudioNames[type - 1];
} else {
typeName = "MPEG-4";
}
} else {
for (u_int8_t i = 0; i < numMpegAudioTypes; i++) {
if (type == mpegAudioTypes[i]) {
typeName = mpegAudioNames[i];
break;
}
}
}
u_int32_t timeScale =
MP4GetTrackTimeScale(mp4File, trackId);
MP4Duration trackDuration =
MP4GetTrackDuration(mp4File, trackId);
double msDuration =
UINT64_TO_DOUBLE(MP4ConvertFromTrackDuration(mp4File, trackId,
trackDuration, MP4_MSECS_TIME_SCALE));
u_int32_t avgBitRate =
MP4GetTrackBitRate(mp4File, trackId);
char *sInfo = (char*)MP4Malloc(256);
// type duration avgBitrate samplingFrequency
sprintf(sInfo,
"%u\taudio\t%s, %.3f secs, %u kbps, %u Hz\n",
trackId,
typeName,
msDuration / 1000.0,
(avgBitRate + 500) / 1000,
timeScale);
return sInfo;
}
static char* PrintVideoInfo(
MP4FileHandle mp4File,
MP4TrackId trackId)
{
static const char* mpeg4VideoNames[] = {
"MPEG-4 Simple @ L3",
"MPEG-4 Simple @ L2",
"MPEG-4 Simple @ L1",
"MPEG-4 Simple Scalable @ L2",
"MPEG-4 Simple Scalable @ L1",
"MPEG-4 Core @ L2",
"MPEG-4 Core @ L1",
"MPEG-4 Main @ L4",
"MPEG-4 Main @ L3",
"MPEG-4 Main @ L2",
"MPEG-4 Main @ L1",
"MPEG-4 N-Bit @ L2",
"MPEG-4 Hybrid @ L2",
"MPEG-4 Hybrid @ L1",
"MPEG-4 Hybrid @ L1",
};
static u_int8_t numMpeg4VideoTypes =
sizeof(mpeg4VideoNames) / sizeof(char*);
static u_int8_t mpegVideoTypes[] = {
MP4_MPEG2_SIMPLE_VIDEO_TYPE, // 0x60
MP4_MPEG2_MAIN_VIDEO_TYPE, // 0x61
MP4_MPEG2_SNR_VIDEO_TYPE, // 0x62
MP4_MPEG2_SPATIAL_VIDEO_TYPE, // 0x63
MP4_MPEG2_HIGH_VIDEO_TYPE, // 0x64
MP4_MPEG2_442_VIDEO_TYPE, // 0x65
MP4_MPEG1_VIDEO_TYPE, // 0x6A
MP4_JPEG_VIDEO_TYPE, // 0x6C
MP4_YUV12_VIDEO_TYPE,
MP4_H264_VIDEO_TYPE,
MP4_H263_VIDEO_TYPE,
MP4_H261_VIDEO_TYPE,
};
static const char* mpegVideoNames[] = {
"MPEG-2 Simple",
"MPEG-2 Main",
"MPEG-2 SNR",
"MPEG-2 Spatial",
"MPEG-2 High",
"MPEG-2 4:2:2",
"MPEG-1",
"JPEG",
"YUV12",
"H.264",
"H.263",
"H.261",
};
static u_int8_t numMpegVideoTypes =
sizeof(mpegVideoTypes) / sizeof(u_int8_t);
u_int8_t type =
MP4GetTrackEsdsObjectTypeId(mp4File, trackId);
const char* typeName = "Unknown";
if (type == MP4_MPEG4_VIDEO_TYPE) {
type = MP4GetVideoProfileLevel(mp4File);
if (type > 0 && type <= numMpeg4VideoTypes) {
typeName = mpeg4VideoNames[type - 1];
} else {
typeName = "MPEG-4";
}
} else {
for (u_int8_t i = 0; i < numMpegVideoTypes; i++) {
if (type == mpegVideoTypes[i]) {
typeName = mpegVideoNames[i];
break;
}
}
}
MP4Duration trackDuration =
MP4GetTrackDuration(mp4File, trackId);
double msDuration =
UINT64_TO_DOUBLE(MP4ConvertFromTrackDuration(mp4File, trackId,
trackDuration, MP4_MSECS_TIME_SCALE));
u_int32_t avgBitRate =
MP4GetTrackBitRate(mp4File, trackId);
// Note not all mp4 implementations set width and height correctly
// The real answer can be buried inside the ES configuration info
u_int16_t width = MP4GetTrackVideoWidth(mp4File, trackId);
u_int16_t height = MP4GetTrackVideoHeight(mp4File, trackId);
float fps = MP4GetTrackVideoFrameRate(mp4File, trackId);
char *sInfo = (char*)MP4Malloc(256);
// type duration avgBitrate frameSize frameRate
sprintf(sInfo,
"%u\tvideo\t%s, %.3f secs, %u kbps, %ux%u @ %.2f fps\n",
trackId,
typeName,
msDuration / 1000.0,
(avgBitRate + 500) / 1000,
width,
height,
fps
);
return sInfo;
}
static char* PrintHintInfo(
MP4FileHandle mp4File,
MP4TrackId trackId)
{
MP4TrackId referenceTrackId =
MP4GetHintTrackReferenceTrackId(mp4File, trackId);
char* payloadName = NULL;
MP4GetHintTrackRtpPayload(mp4File, trackId, &payloadName);
char *sInfo = (char*)MP4Malloc(256);
sprintf(sInfo,
"%u\thint\tPayload %s for track %u\n",
trackId,
payloadName,
referenceTrackId);
free(payloadName);
return sInfo;
}
static char* PrintTrackInfo(
MP4FileHandle mp4File,
MP4TrackId trackId)
{
char* trackInfo = NULL;
const char* trackType =
MP4GetTrackType(mp4File, trackId);
if (!strcmp(trackType, MP4_AUDIO_TRACK_TYPE)) {
trackInfo = PrintAudioInfo(mp4File, trackId);
} else if (!strcmp(trackType, MP4_VIDEO_TRACK_TYPE)) {
trackInfo = PrintVideoInfo(mp4File, trackId);
} else if (!strcmp(trackType, MP4_HINT_TRACK_TYPE)) {
trackInfo = PrintHintInfo(mp4File, trackId);
} else {
trackInfo = (char*)MP4Malloc(256);
if (!strcmp(trackType, MP4_OD_TRACK_TYPE)) {
sprintf(trackInfo,
"%u\tod\tObject Descriptors\n",
trackId);
} else if (!strcmp(trackType, MP4_SCENE_TRACK_TYPE)) {
sprintf(trackInfo,
"%u\tscene\tBIFS\n",
trackId);
} else {
sprintf(trackInfo,
"%u\t%s\n",
trackId, trackType);
}
}
return trackInfo;
}
extern "C" char* MP4Info(
MP4FileHandle mp4File,
MP4TrackId trackId)
{
char* info = NULL;
if (MP4_IS_VALID_FILE_HANDLE(mp4File)) {
try {
if (trackId == MP4_INVALID_TRACK_ID) {
info = (char*)MP4Calloc(4*1024);
sprintf(info, "Track\tType\tInfo\n");
u_int32_t numTracks = MP4GetNumberOfTracks(mp4File);
for (u_int32_t i = 0; i < numTracks; i++) {
trackId = MP4FindTrackId(mp4File, i);
char* trackInfo = PrintTrackInfo(mp4File, trackId);
strcat(info, trackInfo);
MP4Free(trackInfo);
}
} else {
info = PrintTrackInfo(mp4File, trackId);
}
}
catch (MP4Error* e) {
delete e;
}
}
return info;
}
extern "C" char* MP4FileInfo(
const char* fileName,
MP4TrackId trackId)
{
MP4FileHandle mp4File =
MP4Read(fileName);
if (!mp4File) {
return NULL;
}
char* info = MP4Info(mp4File, trackId);
MP4Close(mp4File);
return info; // caller should free this
}