agsantos | c9181b4 | 2020-11-26 12:03:04 -0500 | [diff] [blame] | 1 | /* |
Sébastien Blin | cb783e3 | 2021-02-12 11:34:10 -0500 | [diff] [blame] | 2 | * Copyright (C) 2020-2021 Savoir-faire Linux Inc. |
agsantos | c9181b4 | 2020-11-26 12:03:04 -0500 | [diff] [blame] | 3 | * |
| 4 | * Author: Aline Gondim Santos <aline.gondimsantos@savoirfairelinux.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | */ |
| 20 | |
| 21 | #ifndef MEDIASTREAM_H |
| 22 | #define MEDIASTREAM_H |
| 23 | |
| 24 | #include <media/libav_deps.h> |
| 25 | #include <rational.h> |
| 26 | |
| 27 | #include "audioFormat.h" |
| 28 | |
| 29 | #include <string> |
| 30 | |
| 31 | namespace jami { |
| 32 | |
| 33 | struct MediaStream |
| 34 | { |
| 35 | std::string name {}; |
| 36 | int format {-1}; |
| 37 | bool isVideo {false}; |
| 38 | rational<int> timeBase; |
| 39 | int64_t firstTimestamp {0}; |
| 40 | int width {0}; |
| 41 | int height {0}; |
| 42 | int bitrate; |
| 43 | rational<int> frameRate; |
| 44 | int sampleRate {0}; |
| 45 | int nbChannels {0}; |
| 46 | int frameSize {0}; |
| 47 | |
| 48 | MediaStream() {} |
| 49 | |
| 50 | MediaStream(const std::string& streamName, |
| 51 | int fmt, |
| 52 | rational<int> tb, |
| 53 | int w, |
| 54 | int h, |
| 55 | int br, |
| 56 | rational<int> fr) |
| 57 | : name(streamName) |
| 58 | , format(fmt) |
| 59 | , isVideo(true) |
| 60 | , timeBase(tb) |
| 61 | , width(w) |
| 62 | , height(h) |
| 63 | , bitrate(br) |
| 64 | , frameRate(fr) |
| 65 | {} |
| 66 | |
| 67 | MediaStream( |
| 68 | const std::string& streamName, int fmt, rational<int> tb, int sr, int channels, int size) |
| 69 | : name(streamName) |
| 70 | , format(fmt) |
| 71 | , isVideo(false) |
| 72 | , timeBase(tb) |
| 73 | , sampleRate(sr) |
| 74 | , nbChannels(channels) |
| 75 | , frameSize(size) |
| 76 | {} |
| 77 | |
| 78 | MediaStream(const std::string& streamName, AudioFormat fmt) |
| 79 | : MediaStream(streamName, fmt, 0) |
| 80 | {} |
| 81 | |
| 82 | MediaStream(const std::string& streamName, AudioFormat fmt, int64_t startTimestamp) |
| 83 | : name(streamName) |
| 84 | , format(fmt.sampleFormat) |
| 85 | , isVideo(false) |
| 86 | , timeBase(1, fmt.sample_rate) |
| 87 | , firstTimestamp(startTimestamp) |
| 88 | , sampleRate(fmt.sample_rate) |
| 89 | , nbChannels(fmt.nb_channels) |
| 90 | , frameSize(fmt.sample_rate / 50) // standard frame size for our encoder is 20 ms |
| 91 | {} |
| 92 | |
| 93 | MediaStream(const std::string& streamName, AVCodecContext* c) |
| 94 | : MediaStream(streamName, c, 0) |
| 95 | {} |
| 96 | |
| 97 | MediaStream(const std::string& streamName, AVCodecContext* c, int64_t startTimestamp) |
| 98 | : name(streamName) |
| 99 | , firstTimestamp(startTimestamp) |
| 100 | { |
| 101 | if (c) { |
| 102 | timeBase = c->time_base; |
| 103 | switch (c->codec_type) { |
| 104 | case AVMEDIA_TYPE_VIDEO: |
| 105 | format = c->pix_fmt; |
| 106 | isVideo = true; |
| 107 | width = c->width; |
| 108 | height = c->height; |
| 109 | bitrate = c->bit_rate; |
| 110 | frameRate = c->framerate; |
| 111 | break; |
| 112 | case AVMEDIA_TYPE_AUDIO: |
| 113 | format = c->sample_fmt; |
| 114 | isVideo = false; |
| 115 | sampleRate = c->sample_rate; |
| 116 | nbChannels = c->channels; |
| 117 | frameSize = c->frame_size; |
| 118 | break; |
| 119 | default: |
| 120 | break; |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | MediaStream(const MediaStream& other) = default; |
| 126 | |
| 127 | bool isValid() const |
| 128 | { |
| 129 | if (format < 0) |
| 130 | return false; |
| 131 | if (isVideo) |
| 132 | return width > 0 && height > 0; |
| 133 | else |
| 134 | return sampleRate > 0 && nbChannels > 0; |
| 135 | } |
| 136 | |
| 137 | void update(AVFrame* f) |
| 138 | { |
| 139 | // update all info possible (AVFrame has no fps or bitrate data) |
| 140 | format = f->format; |
| 141 | if (isVideo) { |
| 142 | width = f->width; |
| 143 | height = f->height; |
| 144 | } else { |
| 145 | sampleRate = f->sample_rate; |
| 146 | nbChannels = f->channels; |
| 147 | timeBase = rational<int>(1, f->sample_rate); |
| 148 | if (!frameSize) |
| 149 | frameSize = f->nb_samples; |
| 150 | } |
| 151 | } |
| 152 | }; |
| 153 | |
| 154 | inline std::ostream& |
| 155 | operator<<(std::ostream& os, const MediaStream& ms) |
| 156 | { |
| 157 | if (ms.isVideo) { |
| 158 | auto formatName = av_get_pix_fmt_name(static_cast<AVPixelFormat>(ms.format)); |
| 159 | os << (ms.name.empty() ? "(null)" : ms.name) << ": " |
| 160 | << (formatName ? formatName : "(unknown format)") << " video, " << ms.width << "x" |
| 161 | << ms.height << ", " << ms.frameRate << " fps (" << ms.timeBase << ")"; |
| 162 | if (ms.bitrate > 0) |
| 163 | os << ", " << ms.bitrate << " kb/s"; |
| 164 | } else { |
| 165 | os << (ms.name.empty() ? "(null)" : ms.name) << ": " |
| 166 | << av_get_sample_fmt_name(static_cast<AVSampleFormat>(ms.format)) << " audio, " |
| 167 | << ms.nbChannels << " channel(s), " << ms.sampleRate << " Hz (" << ms.timeBase << "), " |
| 168 | << ms.frameSize << " samples per frame"; |
| 169 | } |
| 170 | if (ms.firstTimestamp > 0) |
| 171 | os << ", start: " << ms.firstTimestamp; |
| 172 | return os; |
| 173 | } |
| 174 | }; // namespace jami |
| 175 | |
| 176 | #endif // MEDIASTREAM_H |