[1325] | 1 | |
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[1282] | 2 | /* |
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| 3 | * ====================================================================== |
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| 4 | * Rappture::AVTranslate |
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| 5 | * |
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| 6 | * AUTHOR: Derrick Kearney, Purdue University |
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| 7 | * |
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| 8 | * Copyright (c) 2005-2009 Purdue Research Foundation |
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| 9 | * ---------------------------------------------------------------------- |
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| 10 | * See the file "license.terms" for information on usage and |
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| 11 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 12 | * ====================================================================== |
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| 13 | */ |
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| 14 | |
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| 15 | |
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[1351] | 16 | #include "nvconf.h" |
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| 17 | |
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[2120] | 18 | #if defined(HAVE_LIBAVCODEC) || defined(HAVE_LIBAVFORMAT) |
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[1282] | 19 | #include <cstdlib> |
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| 20 | #include <cstdio> |
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| 21 | #include <cstring> |
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| 22 | #include <cmath> |
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| 23 | #include <fstream> |
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| 24 | #include <assert.h> |
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| 25 | |
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[1351] | 26 | extern "C" { |
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| 27 | #ifdef HAVE_FFMPEG_MEM_H |
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| 28 | #include <ffmpeg/mem.h> |
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| 29 | #endif |
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| 30 | #ifdef HAVE_LIBAVUTIL_MEM_H |
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| 31 | #include <libavutil/mem.h> |
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| 32 | #endif |
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| 33 | } |
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| 34 | |
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| 35 | #include "RpAVTranslate.h" |
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| 36 | |
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[2742] | 37 | #ifndef HAVE_AVMEDIA_TYPE_VIDEO |
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| 38 | #define AVMEDIA_TYPE_VIDEO CODEC_TYPE_VIDEO |
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| 39 | #endif /* HAVE_AVMEDIA_TYPE_VIDEO */ |
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| 40 | |
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| 41 | #ifndef AV_PKT_FLAG_KEY |
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| 42 | #define AV_PKT_FLAG_KEY PKT_FLAG_KEY |
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| 43 | #endif |
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| 44 | |
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| 45 | #ifndef HAVE_AV_GUESS_FORMAT |
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| 46 | #define av_guess_format guess_format |
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| 47 | #endif /*HAVE_AV_GUESS_FORMAT*/ |
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| 48 | |
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| 49 | #ifndef HAVE_AV_DUMP_FORMAT |
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| 50 | #define av_dump_format dump_format |
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| 51 | #endif /*HAVE_AV_DUMP_FORMAT*/ |
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| 52 | |
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| 53 | #ifndef HAVE_AVIO_OPEN |
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| 54 | #define avio_open url_fopen |
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| 55 | #endif /*HAVE_AVIO_OPEN*/ |
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| 56 | |
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| 57 | #ifndef HAVE_AVIO_CLOSE |
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| 58 | #define avio_close url_fclose |
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| 59 | #endif /*HAVE_AVIO_CLOSE*/ |
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| 60 | |
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[1282] | 61 | #ifndef M_PI |
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| 62 | #define M_PI 3.14159265358979323846 |
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| 63 | #endif |
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| 64 | |
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[1325] | 65 | using namespace Rappture; |
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[1282] | 66 | |
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[1351] | 67 | AVTranslate::AVTranslate(size_t width, size_t height) : |
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| 68 | _width (width), |
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[1282] | 69 | _height (height), |
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[1351] | 70 | _bitRate(400000), |
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| 71 | _frameRate(25.0f), |
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| 72 | _videoOutbufSize(200000), |
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| 73 | _videoOutbuf(NULL), |
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| 74 | _fmtPtr(NULL), |
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| 75 | _ocPtr(NULL), |
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| 76 | _avStreamPtr(NULL), |
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| 77 | _pictPtr(NULL), |
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| 78 | _rgbPictPtr(NULL) |
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| 79 | { |
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| 80 | } |
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[1282] | 81 | |
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[1351] | 82 | AVTranslate::AVTranslate(size_t width, size_t height, size_t bitRate, |
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| 83 | float frameRate) |
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[1282] | 84 | : _width (width), |
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| 85 | _height (height), |
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[1351] | 86 | _bitRate(bitRate), |
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| 87 | _frameRate(frameRate), |
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| 88 | _videoOutbufSize(200000), |
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| 89 | _videoOutbuf(NULL), |
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| 90 | _fmtPtr(NULL), |
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| 91 | _ocPtr(NULL), |
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| 92 | _avStreamPtr(NULL), |
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| 93 | _pictPtr(NULL), |
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| 94 | _rgbPictPtr(NULL) |
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| 95 | { |
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| 96 | } |
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[1282] | 97 | |
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| 98 | /** |
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| 99 | * Copy constructor |
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| 100 | * @param AVTranslate object to copy |
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| 101 | */ |
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| 102 | /* |
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| 103 | AVTranslate::AVTranslate(const AVTranslate& o) |
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| 104 | {} |
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| 105 | */ |
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| 106 | |
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| 107 | AVTranslate::~AVTranslate() |
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[1312] | 108 | { |
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[1325] | 109 | #ifdef notdef |
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| 110 | /* FIXME:: This can't be right. Don't want to automatically write out |
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| 111 | * trailer etc. on destruction of this object. */ |
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| 112 | done(); |
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| 113 | #endif |
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[1312] | 114 | } |
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[1282] | 115 | |
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| 116 | |
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[1325] | 117 | bool |
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| 118 | AVTranslate::init(Outcome &status, const char *filename) |
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[1282] | 119 | { |
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[1351] | 120 | status.addContext("Rappture::AVTranslate::init()"); |
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[1508] | 121 | /* Initialize libavcodec, and register all codecs and formats */ |
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| 122 | avcodec_init(); |
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| 123 | avcodec_register_all(); |
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[1282] | 124 | av_register_all(); |
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| 125 | |
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[1508] | 126 | /* Auto detect the output format from the name. default is mpeg. */ |
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[2742] | 127 | _fmtPtr = av_guess_format(NULL, filename, NULL); |
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[1351] | 128 | if (_fmtPtr == NULL) { |
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[1282] | 129 | /* |
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[2409] | 130 | TRACE( "Could not deduce output format from" |
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[1282] | 131 | "file extension: using MPEG.\n"); |
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| 132 | */ |
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[2742] | 133 | _fmtPtr = av_guess_format("mpeg", NULL, NULL); |
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[1282] | 134 | } |
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[1351] | 135 | if (_fmtPtr == NULL) { |
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[1325] | 136 | status.addError("Could not find suitable output format"); |
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| 137 | return false; |
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[1282] | 138 | } |
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| 139 | |
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[1353] | 140 | #ifdef HAVE_AVFORMAT_ALLOC_CONTEXT |
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[1508] | 141 | /* Allocate the output media context. */ |
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[1353] | 142 | _ocPtr = avformat_alloc_context(); |
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| 143 | #else |
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[1351] | 144 | _ocPtr = av_alloc_format_context(); |
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| 145 | #endif |
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| 146 | if (!_ocPtr) { |
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[1325] | 147 | status.addError("Memory error while allocating format context"); |
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| 148 | return false; |
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[1282] | 149 | } |
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[1351] | 150 | _ocPtr->oformat = _fmtPtr; |
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| 151 | snprintf(_ocPtr->filename, sizeof(_ocPtr->filename), "%s", filename); |
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[1282] | 152 | |
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[1508] | 153 | /* Add the video stream using the default format codecs and initialize the |
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| 154 | codecs. */ |
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[1351] | 155 | _avStreamPtr = NULL; |
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| 156 | if (_fmtPtr->video_codec != CODEC_ID_NONE) { |
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[1508] | 157 | if ( (!addVideoStream(status, _fmtPtr->video_codec, &_avStreamPtr)) ) { |
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[1325] | 158 | return false; |
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[1282] | 159 | } |
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| 160 | } |
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| 161 | |
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[2742] | 162 | #if defined(HAVE_AV_SET_PARAMETERS) && !defined(HAVE_AVFORMAT_WRITE_HEADER) |
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[1508] | 163 | /* Set the output parameters (must be done even if no parameters). */ |
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[1351] | 164 | if (av_set_parameters(_ocPtr, NULL) < 0) { |
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[1325] | 165 | status.addError("Invalid output format parameters"); |
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| 166 | return false; |
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[1282] | 167 | } |
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[2742] | 168 | #endif |
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| 169 | av_dump_format(_ocPtr, 0, filename, 1); |
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[1282] | 170 | |
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[1508] | 171 | /* Now that all the parameters are set, we can open the video codec and |
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| 172 | allocate the necessary encode buffers */ |
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[1351] | 173 | if (_avStreamPtr) { |
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[1325] | 174 | if (!openVideo(status)) { |
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| 175 | return false; |
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[1282] | 176 | } |
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| 177 | } |
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| 178 | |
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[1508] | 179 | /* Open the output file, if needed. */ |
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[1351] | 180 | if (!(_fmtPtr->flags & AVFMT_NOFILE)) { |
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[2742] | 181 | if (avio_open(&_ocPtr->pb, filename, URL_WRONLY) < 0) { |
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[1325] | 182 | status.addError("Could not open '%s'", filename); |
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| 183 | return false; |
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[1282] | 184 | } |
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| 185 | } |
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| 186 | |
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| 187 | /* write the stream header, if any */ |
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[2742] | 188 | #ifdef HAVE_AVFORMAT_WRITE_HEADER |
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| 189 | avformat_write_header(_ocPtr, NULL); |
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| 190 | #else |
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[1351] | 191 | av_write_header(_ocPtr); |
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[2742] | 192 | #endif |
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[1325] | 193 | return true; |
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[1282] | 194 | } |
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| 195 | |
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[1325] | 196 | bool |
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[1351] | 197 | AVTranslate::append(Outcome &status, uint8_t *rgbData, size_t linePad) |
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[1282] | 198 | { |
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[1351] | 199 | status.addContext("Rappture::AVTranslate::append()"); |
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| 200 | if (rgbData == NULL) { |
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| 201 | status.addError("rdbData pointer is NULL"); |
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[1325] | 202 | return false; |
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[1282] | 203 | } |
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[1500] | 204 | /* Copy the data into the picture without the padding and reversing the |
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| 205 | * rows. Note that the origin of the GL image is the lower-left while for |
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| 206 | * the movie it's upper-left. */ |
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[1503] | 207 | size_t bytesPerRow = _width * 3; |
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| 208 | size_t bytesPerLine = bytesPerRow + linePad; |
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| 209 | uint8_t *srcRowPtr = rgbData + ((_height - 1) * bytesPerLine); |
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[1351] | 210 | uint8_t *destPtr = _rgbPictPtr->data[0]; |
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[1282] | 211 | for (size_t y = 0; y < _height; y++) { |
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[1500] | 212 | uint8_t *sp, *send; |
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| 213 | |
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[1503] | 214 | for (sp = srcRowPtr, send = sp + bytesPerRow; sp < send; sp++, destPtr++) { |
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[1500] | 215 | *destPtr = *sp; |
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[1282] | 216 | } |
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[1503] | 217 | srcRowPtr -= bytesPerLine; |
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[1282] | 218 | } |
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| 219 | |
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[1351] | 220 | #ifdef HAVE_IMG_CONVERT |
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[1508] | 221 | // Use img_convert instead of sws_scale because img_convert is LGPL and |
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| 222 | // sws_scale is GPL |
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[1351] | 223 | img_convert((AVPicture *)_pictPtr, PIX_FMT_YUV420P, |
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| 224 | (AVPicture *)_rgbPictPtr, PIX_FMT_RGB24, |
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[1282] | 225 | _width, _height); |
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[1351] | 226 | #endif /*HAVE_IMG_CONVERT*/ |
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[1325] | 227 | writeVideoFrame(status); |
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[1282] | 228 | |
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[1325] | 229 | return true; |
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[1282] | 230 | } |
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| 231 | |
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[1325] | 232 | |
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| 233 | bool |
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| 234 | AVTranslate::done(Outcome &status) |
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[1282] | 235 | { |
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| 236 | size_t i = 0; |
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| 237 | |
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[1508] | 238 | /* Close each codec */ |
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[1351] | 239 | if (_avStreamPtr) { |
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[1325] | 240 | closeVideo(status); |
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[1282] | 241 | } |
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| 242 | |
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[1508] | 243 | /* Write the trailer, if any */ |
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[1351] | 244 | av_write_trailer(_ocPtr); |
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[1282] | 245 | |
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[1508] | 246 | /* Free the streams */ |
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[1351] | 247 | for(i = 0; i < _ocPtr->nb_streams; i++) { |
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| 248 | av_freep(&_ocPtr->streams[i]->codec); |
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| 249 | // _ocPtr->streams[i]->codec = NULL; |
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[1282] | 250 | |
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[1351] | 251 | av_freep(&_ocPtr->streams[i]); |
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| 252 | // _ocPtr->streams[i] = NULL; |
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[1282] | 253 | } |
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| 254 | |
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[1351] | 255 | if (!(_fmtPtr->flags & AVFMT_NOFILE)) { |
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[1282] | 256 | /* close the output file */ |
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[2742] | 257 | avio_close(_ocPtr->pb); |
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[1282] | 258 | } |
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| 259 | |
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[1508] | 260 | /* Free the stream */ |
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[1351] | 261 | av_free(_ocPtr); |
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| 262 | _ocPtr = NULL; |
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[1325] | 263 | return true; |
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[1282] | 264 | } |
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| 265 | |
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| 266 | |
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[1508] | 267 | /* Add a video output stream */ |
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[1325] | 268 | bool |
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[1351] | 269 | AVTranslate::addVideoStream(Outcome &status, CodecID codec_id, |
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| 270 | AVStream **streamPtrPtr) |
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[1282] | 271 | { |
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[1351] | 272 | status.addContext("Rappture::AVTranslate::add_video_stream()"); |
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| 273 | if (streamPtrPtr == NULL) { |
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[1325] | 274 | status.addError("AVStream **st is NULL"); |
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| 275 | return false; |
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[1282] | 276 | } |
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| 277 | |
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[1351] | 278 | AVStream *streamPtr; |
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| 279 | streamPtr = av_new_stream(_ocPtr, 0); |
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| 280 | if (streamPtr == NULL) { |
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[1325] | 281 | status.addError("Could not alloc stream"); |
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| 282 | return false; |
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[1282] | 283 | } |
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| 284 | |
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[1351] | 285 | AVCodecContext *codecPtr; |
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| 286 | codecPtr = streamPtr->codec; |
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| 287 | codecPtr->codec_id = codec_id; |
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[2742] | 288 | codecPtr->codec_type = AVMEDIA_TYPE_VIDEO; |
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[1282] | 289 | |
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[1508] | 290 | /* Put sample parameters */ |
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[1351] | 291 | codecPtr->bit_rate = _bitRate; |
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[1282] | 292 | /* resolution must be a multiple of two */ |
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[1351] | 293 | codecPtr->width = _width; |
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| 294 | codecPtr->height = _height; |
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[1282] | 295 | /* time base: this is the fundamental unit of time (in seconds) in terms |
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| 296 | of which frame timestamps are represented. for fixed-fps content, |
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| 297 | timebase should be 1/framerate and timestamp increments should be |
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| 298 | identically 1. */ |
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[1351] | 299 | codecPtr->time_base.den = _frameRate; |
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| 300 | codecPtr->time_base.num = 1; |
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[1508] | 301 | codecPtr->gop_size = 12; /* Emit one intra frame every twelve |
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| 302 | * frames at most */ |
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[1351] | 303 | codecPtr->pix_fmt = PIX_FMT_YUV420P; |
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| 304 | if (codecPtr->codec_id == CODEC_ID_MPEG2VIDEO) { |
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[1282] | 305 | /* just for testing, we also add B frames */ |
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[1351] | 306 | codecPtr->max_b_frames = 2; |
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[1282] | 307 | } |
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[1351] | 308 | if (codecPtr->codec_id == CODEC_ID_MPEG1VIDEO) { |
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[1282] | 309 | /* Needed to avoid using macroblocks in which some coeffs overflow. |
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[1508] | 310 | This does not happen with normal video, it just happens here as the |
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| 311 | motion of the chroma plane does not match the luma plane. */ |
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[1351] | 312 | codecPtr->mb_decision=2; |
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[1282] | 313 | } |
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[1508] | 314 | /* some formats want stream headers to be separate */ |
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[1351] | 315 | if((strcmp(_ocPtr->oformat->name, "mp4") == 0) || |
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| 316 | (strcmp(_ocPtr->oformat->name, "mov") == 0) || |
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| 317 | (strcmp(_ocPtr->oformat->name, "3gp") == 0)) { |
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| 318 | codecPtr->flags |= CODEC_FLAG_GLOBAL_HEADER; |
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[1282] | 319 | } |
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[1351] | 320 | *streamPtrPtr = streamPtr; |
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[1325] | 321 | return true; |
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[1282] | 322 | } |
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| 323 | |
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[1325] | 324 | bool |
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[1571] | 325 | AVTranslate::allocPicture(Outcome &status, PixelFormat pixFmt, |
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| 326 | AVFrame **framePtrPtr) |
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[1282] | 327 | { |
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[1351] | 328 | status.addContext("Rappture::AVTranslate::allocPicture()"); |
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| 329 | if (framePtrPtr == NULL) { |
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[1325] | 330 | status.addError("AVFrame **p == NULL"); |
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| 331 | return false; |
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[1282] | 332 | } |
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| 333 | |
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[1351] | 334 | AVFrame *framePtr; |
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| 335 | framePtr = avcodec_alloc_frame(); |
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| 336 | if (framePtr == NULL) { |
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[1325] | 337 | status.addError("Memory error: Could not alloc frame"); |
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| 338 | return false; |
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[1282] | 339 | } |
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[1351] | 340 | |
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| 341 | size_t size; |
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| 342 | size = avpicture_get_size(pixFmt, _width, _height); |
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| 343 | |
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| 344 | uint8_t *bits; |
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| 345 | bits = (uint8_t *)av_malloc(size); |
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| 346 | if (bits == NULL) { |
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| 347 | av_free(framePtr); |
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[1325] | 348 | status.addError("Memory error: Could not alloc picture buffer"); |
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| 349 | return false; |
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[1282] | 350 | } |
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[1351] | 351 | avpicture_fill((AVPicture *)framePtr, bits, pixFmt, _width, _height); |
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| 352 | *framePtrPtr = framePtr; |
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[1325] | 353 | return true; |
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[1282] | 354 | } |
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| 355 | |
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[1325] | 356 | bool |
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| 357 | AVTranslate::openVideo(Outcome &status) |
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[1282] | 358 | { |
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| 359 | AVCodec *codec; |
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| 360 | AVCodecContext *c; |
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| 361 | |
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[1351] | 362 | status.addContext("Rappture::AVTranslate::openVideo()"); |
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| 363 | c = _avStreamPtr->codec; |
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[1282] | 364 | |
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| 365 | /* find the video encoder */ |
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| 366 | codec = avcodec_find_encoder(c->codec_id); |
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[1508] | 367 | if (codec == NULL) { |
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| 368 | status.addError("can't find codec %d\n", c->codec->id); |
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[1325] | 369 | return false; |
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[1282] | 370 | } |
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| 371 | |
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| 372 | /* open the codec */ |
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| 373 | if (avcodec_open(c, codec) < 0) { |
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[1508] | 374 | status.addError("can't open codec %d", c->codec->id); |
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[1325] | 375 | return false; |
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[1282] | 376 | } |
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| 377 | |
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[1351] | 378 | _videoOutbuf = NULL; |
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| 379 | if (!(_ocPtr->oformat->flags & AVFMT_RAWPICTURE)) { |
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[1282] | 380 | /* allocate output buffer */ |
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| 381 | /* XXX: API change will be done */ |
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| 382 | /* buffers passed into lav* can be allocated any way you prefer, |
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| 383 | as long as they're aligned enough for the architecture, and |
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| 384 | they're freed appropriately (such as using av_free for buffers |
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| 385 | allocated with av_malloc) */ |
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[1351] | 386 | _videoOutbuf = (uint8_t *) av_malloc(_videoOutbufSize); |
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[1282] | 387 | } |
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[1351] | 388 | /* Allocate the encoded raw picture */ |
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| 389 | if (!allocPicture(status, c->pix_fmt, &_pictPtr)) { |
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[1325] | 390 | return false; |
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[1282] | 391 | } |
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[1351] | 392 | if (!allocPicture(status, PIX_FMT_RGB24, &_rgbPictPtr)) { |
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| 393 | status.addError("allocPicture: can't allocate picture"); |
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[1325] | 394 | return false; |
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[1282] | 395 | } |
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[1325] | 396 | return true; |
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[1282] | 397 | } |
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| 398 | |
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[1325] | 399 | bool |
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| 400 | AVTranslate::writeVideoFrame(Outcome &status) |
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[1282] | 401 | { |
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[1351] | 402 | AVCodecContext *codecPtr; |
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[1282] | 403 | |
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[1351] | 404 | status.addContext("Rappture::AVTranslate::writeVideoframe()"); |
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| 405 | codecPtr = _avStreamPtr->codec; |
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[1282] | 406 | |
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| 407 | /* encode the image */ |
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[1351] | 408 | int size; |
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| 409 | size = avcodec_encode_video(codecPtr, _videoOutbuf, _videoOutbufSize, |
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| 410 | _pictPtr); |
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| 411 | if (size < 0) { |
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| 412 | status.addError("Error while writing video frame"); |
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| 413 | return false; |
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| 414 | } |
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| 415 | if (size == 0) { |
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| 416 | return true; /* Image was buffered */ |
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| 417 | } |
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| 418 | AVPacket pkt; |
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| 419 | av_init_packet(&pkt); |
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[1282] | 420 | |
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[1351] | 421 | pkt.pts = av_rescale_q(codecPtr->coded_frame->pts, codecPtr->time_base, |
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| 422 | _avStreamPtr->time_base); |
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| 423 | if (codecPtr->coded_frame->key_frame) { |
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[2742] | 424 | pkt.flags |= AV_PKT_FLAG_KEY; |
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[1282] | 425 | } |
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[1351] | 426 | pkt.stream_index = _avStreamPtr->index; |
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| 427 | pkt.data = _videoOutbuf; |
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| 428 | pkt.size = size; |
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| 429 | |
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| 430 | /* write the compressed frame i the media file */ |
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| 431 | if (av_write_frame(_ocPtr, &pkt) < 0) { |
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[1325] | 432 | status.addError("Error while writing video frame"); |
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| 433 | return false; |
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[1282] | 434 | } |
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[1325] | 435 | return true; |
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[1282] | 436 | } |
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| 437 | |
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| 438 | |
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[1325] | 439 | bool |
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| 440 | AVTranslate::closeVideo(Outcome &status) |
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[1282] | 441 | { |
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[1351] | 442 | if (_avStreamPtr != NULL) { |
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| 443 | avcodec_close(_avStreamPtr->codec); |
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| 444 | } |
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| 445 | if (_pictPtr != NULL) { |
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| 446 | av_free(_pictPtr->data[0]); |
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| 447 | av_free(_pictPtr); |
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| 448 | _pictPtr = NULL; |
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| 449 | } |
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| 450 | if (_rgbPictPtr != NULL) { |
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| 451 | av_free(_rgbPictPtr->data[0]); |
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| 452 | av_free(_rgbPictPtr); |
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| 453 | _rgbPictPtr = NULL; |
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| 454 | } |
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| 455 | if (_videoOutbuf != NULL) { |
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| 456 | av_free(_videoOutbuf); |
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| 457 | _videoOutbuf = NULL; |
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| 458 | } |
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[1325] | 459 | return true; |
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[1282] | 460 | } |
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| 461 | |
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| 462 | /* |
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[1325] | 463 | status.addError("error while opening file"); |
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[1282] | 464 | status.addContext("Rappture::Buffer::dump()"); |
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| 465 | return status; |
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| 466 | */ |
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| 467 | |
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[2120] | 468 | #endif /* HAVE_LIBAVCODEC && HAVE_LIBAVFORMAT */ |
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