📄 mp4info.cpp
字号:
/* * 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. * * Portions created by Ximpo Group Ltd. are * Copyright (C) Ximpo Group Ltd. 2003, 2004. All Rights Reserved. * * Contributor(s): * Dave Mackie dmackie@cisco.com * Bill May wmay@cisco.com * Alix Marchandise-Franquet alix@cisco.com * Ximpo Group Ltd. mp4v2@ximpo.com */#include "mp4common.h"static char* PrintAudioInfo( MP4FileHandle mp4File, MP4TrackId trackId){ static const char* mpeg4AudioNames[] = { "MPEG-4 AAC main", "MPEG-4 AAC LC", "MPEG-4 AAC SSR", "MPEG-4 AAC LTP", "MPEG-4 AAC HE", "MPEG-4 AAC Scalable", "MPEG-4 TwinVQ", "MPEG-4 CELP", "MPEG-4 HVXC", NULL, NULL, "MPEG-4 TTSI", "MPEG-4 Main Synthetic", "MPEG-4 Wavetable Syn", "MPEG-4 General MIDI", "MPEG-4 Algo Syn and Audio FX", "MPEG-4 ER AAC LC", NULL, "MPEG-4 ER AAC LTP", "MPEG-4 ER AAC Scalable", "MPEG-4 ER TwinVQ", "MPEG-4 ER BSAC", "MPEG-4 ER ACC LD", "MPEG-4 ER CELP", "MPEG-4 ER HVXC", "MPEG-4 ER HILN", "MPEG-4 ER Parametric", }; static const 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 // private types 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 Audio (13818-3)", "MPEG-1 Audio (11172-3)", // private types "PCM16 (little endian)", "Vorbis", "G.711 aLaw", "G.711 uLaw", "G.723.1", "PCM16 (big endian)", }; u_int8_t numMpegAudioTypes = sizeof(mpegAudioTypes) / sizeof(u_int8_t); const char* typeName = "Unknown"; bool foundType = false; u_int8_t type = 0; const char *media_data_name; media_data_name = MP4GetTrackMediaDataName(mp4File, trackId); if (media_data_name == NULL) { typeName = "Unknown - no media data name"; } else if (strcasecmp(media_data_name, "samr") == 0) { typeName = "AMR"; foundType = true; } else if (strcasecmp(media_data_name, "sawb") == 0) { typeName = "AMR-WB"; foundType = true; } else if (strcasecmp(media_data_name, "mp4a") == 0) { type = MP4GetTrackEsdsObjectTypeId(mp4File, trackId); switch (type) { case MP4_INVALID_AUDIO_TYPE: typeName = "AAC from .mov"; foundType = true; break; case MP4_MPEG4_AUDIO_TYPE: { u_int8_t* pAacConfig = NULL; u_int32_t aacConfigLength; MP4GetTrackESConfiguration(mp4File, trackId, &pAacConfig, &aacConfigLength); if (pAacConfig != NULL && aacConfigLength >= 2) { type = (pAacConfig[0] >> 3) & 0x1f; if (type == 0 || /* type == 5 || */ type == 10 || type == 11 || type == 18 || type >= 28) { typeName = "MPEG-4 Unknown Profile"; } else { typeName = mpeg4AudioNames[type - 1]; foundType = true; } free(pAacConfig); } else { typeName = "MPEG-4 (no GAConfig)"; foundType = true; } break; } // fall through default: for (u_int8_t i = 0; i < numMpegAudioTypes; i++) { if (type == mpegAudioTypes[i]) { typeName = mpegAudioNames[i]; foundType = true; break; } } } } else { typeName = media_data_name; foundType = true; } 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 if (foundType) sprintf(sInfo, "%u\taudio\t%s%s, %.3f secs, %u kbps, %u Hz\n", trackId, MP4IsIsmaCrypMediaTrack(mp4File, trackId) ? "enca - " : "", typeName, msDuration / 1000.0, (avgBitRate + 500) / 1000, timeScale); else sprintf(sInfo, "%u\taudio\t%s%s(%u), %.3f secs, %u kbps, %u Hz\n", trackId, MP4IsIsmaCrypMediaTrack(mp4File, trackId) ? "enca - " : "", typeName, type, msDuration / 1000.0, (avgBitRate + 500) / 1000, timeScale); return sInfo;}static const struct { uint8_t profile; const char *name;} VisualProfileToName[] = { { MPEG4_SP_L1, "MPEG-4 Simple @ L1"}, { MPEG4_SP_L2, "MPEG-4 Simple @ L2" }, { MPEG4_SP_L3, "MPEG-4 Simple @ L3" }, { MPEG4_SP_L0, "MPEG-4 Simple @ L0" }, { MPEG4_SSP_L1, "MPEG-4 Simple Scalable @ L1"}, { MPEG4_SSP_L2, "MPEG-4 Simple Scalable @ L2" }, { MPEG4_CP_L1, "MPEG-4 Core @ L1"}, { MPEG4_CP_L2, "MPEG-4 Core @ L2"}, { MPEG4_MP_L2, "MPEG-4 Main @ L2"}, { MPEG4_MP_L3, "MPEG-4 Main @ L3"}, { MPEG4_MP_L4, "MPEG-4 Main @ L4"}, { MPEG4_NBP_L2, "MPEG-4 N-bit @ L2"}, { MPEG4_STP_L1, "MPEG-4 Scalable Texture @ L1"}, { MPEG4_SFAP_L1, "MPEG-4 Simple Face Anim @ L1"}, { MPEG4_SFAP_L2, "MPEG-4 Simple Face Anim @ L2"}, { MPEG4_SFBAP_L1, "MPEG-4 Simple FBA @ L1"}, { MPEG4_SFBAP_L2, "MPEG-4 Simple FBA @ L2"}, { MPEG4_BATP_L1, "MPEG-4 Basic Anim Text @ L1"}, { MPEG4_BATP_L2, "MPEG-4 Basic Anim Text @ L2"}, { MPEG4_HP_L1, "MPEG-4 Hybrid @ L1"}, { MPEG4_HP_L2, "MPEG-4 Hybrid @ L2"}, { MPEG4_ARTSP_L1, "MPEG-4 Adv RT Simple @ L1"}, { MPEG4_ARTSP_L2, "MPEG-4 Adv RT Simple @ L2"}, { MPEG4_ARTSP_L3, "MPEG-4 Adv RT Simple @ L3"}, { MPEG4_ARTSP_L4, "MPEG-4 Adv RT Simple @ L4"}, { MPEG4_CSP_L1, "MPEG-4 Core Scalable @ L1"}, { MPEG4_CSP_L2, "MPEG-4 Core Scalable @ L2"}, { MPEG4_CSP_L3, "MPEG-4 Core Scalable @ L3"}, { MPEG4_ACEP_L1, "MPEG-4 Adv Coding Efficieny @ L1"}, { MPEG4_ACEP_L2, "MPEG-4 Adv Coding Efficieny @ L2"}, { MPEG4_ACEP_L3, "MPEG-4 Adv Coding Efficieny @ L3"}, { MPEG4_ACEP_L4, "MPEG-4 Adv Coding Efficieny @ L4"}, { MPEG4_ACP_L1, "MPEG-4 Adv Core Profile @ L1"}, { MPEG4_ACP_L2, "MPEG-4 Adv Core Profile @ L2"}, { MPEG4_AST_L1, "MPEG-4 Adv Scalable Texture @ L1"}, { MPEG4_AST_L2, "MPEG-4 Adv Scalable Texture @ L2"}, { MPEG4_AST_L3, "MPEG-4 Adv Scalable Texture @ L3"}, { MPEG4_S_STUDIO_P_L1, "MPEG-4 Simple Studio @ L1"}, { MPEG4_S_STUDIO_P_L2, "MPEG-4 Simple Studio @ L2"}, { MPEG4_S_STUDIO_P_L3, "MPEG-4 Simple Studio @ L3"}, { MPEG4_S_STUDIO_P_L4, "MPEG-4 Simple Studio @ L4"}, { MPEG4_C_STUDIO_P_L1, "MPEG-4 Core Studio @ L1"}, { MPEG4_C_STUDIO_P_L2, "MPEG-4 Core Studio @ L2"}, { MPEG4_C_STUDIO_P_L3, "MPEG-4 Core Studio @ L3"}, { MPEG4_C_STUDIO_P_L4, "MPEG-4 Core Studio @ L4"}, { MPEG4_ASP_L0, "MPEG-4 Adv Simple@L0"}, { MPEG4_ASP_L1, "MPEG-4 Adv Simple@L1"}, { MPEG4_ASP_L2, "MPEG-4 Adv Simple@L2"}, { MPEG4_ASP_L3, "MPEG-4 Adv Simple@L3"}, { MPEG4_ASP_L4, "MPEG-4 Adv Simple@L4"}, { MPEG4_ASP_L5, "MPEG-4 Adv Simple@L5"}, { MPEG4_ASP_L3B, "MPEG-4 Adv Simple@L3b"}, { MPEG4_FGSP_L0, "MPEG-4 FGS @ L0" }, { MPEG4_FGSP_L1, "MPEG-4 FGS @ L1" }, { MPEG4_FGSP_L2, "MPEG-4 FGS @ L2" }, { MPEG4_FGSP_L3, "MPEG-4 FGS @ L3" }, { MPEG4_FGSP_L4, "MPEG-4 FGS @ L4" }, { MPEG4_FGSP_L5, "MPEG-4 FGS @ L5" }};static const char *Mpeg4VisualProfileName (uint8_t visual_profile){ size_t size = sizeof(VisualProfileToName) / sizeof(*VisualProfileToName); for (size_t ix = 0; ix < size; ix++) { if (visual_profile == VisualProfileToName[ix].profile) { return (VisualProfileToName[ix].name); } } return (NULL);}static char* PrintVideoInfo( MP4FileHandle mp4File, MP4TrackId trackId){ static const 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_H263_VIDEO_TYPE, MP4_H261_VIDEO_TYPE, }; static const char* mpegVideoNames[] = { "MPEG-2 Simple", "MPEG-2 Main",
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -