BirdNet-goMikrofon/Arduino-audio-tools-main/arduino-audio-tools-main/tests-cmake/video/decode-avi/decode-avi-player.ino

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2026-09-26 01:20:55 +02:00
/**
* @file decode-avi-player.ino
* @brief Same pipeline/test file as decode-avi.ino, but driven through
* AudioTools/Video/VideoPlayer.h instead of wiring CodecCopy,
* MultiVideoDecoder, DecoderHelix and PacedVideoOutput together by hand -
* see decode-avi.ino's own class comment for the pipeline this replaces
* (identical end to end; VideoPlayer just owns the wiring).
*
* This AVI file has a real audio track, so VideoPlayer schedules video
* against actual playback progress by default (setUseAudioClock(), on by
* default - see VideoPlayer's own class comment's "Audio clock" section
* for when to opt out instead).
*
* VideoPlayer's video AND audio multi-decoders both start empty (no
* forced dependency on any one codec library - see its own class
* comment), so the codecs this AVI file's tracks may use (H.264/MJPEG
* video, MP3/AAC/WAV audio - the same trio DecoderHelix bundles by
* default) are registered here explicitly via addVideoDecoder()/
* addAudioDecoder() (aviDemuxer itself is registered via the
* constructor - see VideoPlayer's own class comment). VideoPlayerFull
* (see decode-avi-player-full.ino) does this same registration
* internally, if you don't want to repeat it per sketch.
*
* To build & run:
* - mkdir build && cd build && cmake .. && make
* - ./decode-avi-player
*
* @author Phil Schatzmann
* @copyright GPLv3
*/
#include "AudioTools.h"
#include "AudioTools/AudioCodecs/CodecAACHelix.h"
#include "AudioTools/AudioCodecs/CodecMP3Helix.h"
#include "AudioTools/AudioCodecs/CodecWAV.h"
#include "AudioTools/AudioCodecs/ContainerAVI.h"
#include "AudioTools/AudioLibs/PortAudioStream.h"
#include "AudioTools/Video/CodecH264.h"
#include "AudioTools/Video/CodecJPEG.h"
#include "AudioTools/Video/OutputOpenCV.h"
#include "AudioTools/Video/VideoPlayer.h"
#include "SD.h"
// ---- File to play ----
const char *file_path = "/media/pschatzmann/External/Videos/output176x144.avi";
OutputOpenCV videoOut; // default mode is MJPEG - decodes the JPEG itself
PortAudioStream out;
DemuxerAVI aviDemuxer;
VideoPlayer player(aviDemuxer, videoOut, out);
H264Decoder h264Decoder;
MJPEGDecoder mjpegDecoder;
MP3DecoderHelix mp3Decoder;
AACDecoderHelix aacDecoder;
WAVDecoder wavDecoder;
File file;
void setup() {
AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
file = SD.open(file_path);
if (!file) {
Serial.print("Could not open ");
Serial.println(file_path);
exit(1);
}
auto audio_cfg = out.defaultConfig(TX_MODE);
audio_cfg.buffer_size = 1024;
audio_cfg.buffer_count = 10;
out.begin(audio_cfg);
// Both H264Decoder and MJPEGDecoder (the codecs MultiVideoDecoder, used
// internally by VideoPlayer, auto-selects between) output already-
// decoded RGB565 frames, not MJPEG bytes - OutputOpenCV defaults to
// MJPEG mode (which just accumulates bytes waiting for flush(), never
// called here), so without this it silently never displays anything.
videoOut.setVideoFormat(VideoFormat::RGB565);
// Register the codecs this AVI file's tracks may use (see the comment
// at the top of this file - VideoPlayer's multi-decoders start empty;
// aviDemuxer above was already registered via the constructor).
player.addVideoDecoder(h264Decoder);
player.addVideoDecoder(mjpegDecoder);
player.addAudioDecoder(mp3Decoder, "audio/mpeg");
player.addAudioDecoder(aacDecoder, "audio/aac");
player.addAudioDecoder(wavDecoder, "audio/vnd.wave");
// This file has a real audio track - VideoPlayer schedules video against
// it by default (see the class comment's "Audio clock" section).
if (!player.begin(file)) {
Serial.println("VideoPlayer begin() failed");
exit(1);
}
}
void loop() {
static uint32_t diagLast = 0;
if (millis() - diagLast > 1000) {
Serial.print("avg render ms - I: ");
Serial.print(player.videoSyncTask().avgIFrameMs());
Serial.print(" / P: ");
Serial.print(player.videoSyncTask().avgPFrameMs());
Serial.print(" / overall: ");
Serial.println(player.videoSyncTask().avgFrameMs());
diagLast = millis();
}
if (player.copy() == 0) {
Serial.println("Done");
file.close();
exit(0);
}
}