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akode
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Implement ffmpeg 5.0 support

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Version 5.0 of ffmpeg removed a lot of deprecated API which causes akode
to fail to build against it. The ffmpeg plugin has been amended to allow
akode to build against the new version as well as older versions, plus a
call to "av_register_all" has been re-instated for earlier versions to
ensure the player functions correctly.

Signed-off-by: aneejit1 <aneejit1@gmail.com>
pull/9/head
aneejit1 3 years ago
parent 6dc0099e35
commit 9e2710c9d8
1 changed files with 100 additions and 34 deletions
Show Stats Download Patch File Download Diff File

134
akode/plugins/ffmpeg_decoder/ffmpeg_decoder.cpp
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@ -37,7 +37,7 @@ extern "C" {
#include "ffmpeg_decoder.h"
#include <iostream>
#if LIBAVCODEC_VERSION_MAJOR < 58
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(57, 33, 100)
#define CODECPAR codec
#else
#define CODECPAR codecpar
@ -69,10 +69,6 @@ bool FFMPEGDecoderPlugin::canDecode(File* /*src*/) {
// ### FIXME
return true;
}
/*
void FFMPEGDecoderPlugin::initializeFFMPEG() {
av_register_all();
}*/
extern "C" { FFMPEGDecoderPlugin ffmpeg_decoder; }
@ -81,7 +77,8 @@ extern "C" { FFMPEGDecoderPlugin ffmpeg_decoder; }
struct FFMPEGDecoder::private_data
{
private_data() : audioStream(-1), videoStream(-1), packetSize(0), position(0),
eof(false), error(false), initialized(false), retries(0) {};
eof(false), error(false), initialized(false), retries(0),
packet(NULL), audioStream_ctx(NULL), videoStream_ctx(NULL) {};
AVFormatContext* ic;
AVCodec* codec;
@ -90,8 +87,13 @@ struct FFMPEGDecoder::private_data
int audioStream;
int videoStream;
AVCodecContext *audioStream_ctx;
AVCodecContext *videoStream_ctx;
AVPacket packet;
AVPacket *packet;
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57, 12, 100)
AVPacket _packet;
#endif
uint8_t* packetData;
int packetSize;
@ -113,6 +115,9 @@ FFMPEGDecoder::FFMPEGDecoder(File *src) {
d = new private_data;
d->src = src;
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(58,9,100)
av_register_all();
#endif
}
FFMPEGDecoder::~FFMPEGDecoder() {
@ -206,20 +211,41 @@ bool FFMPEGDecoder::openFile() {
av_dump_format(d->ic, d->audioStream, d->src->filename, 0);
// Set config
if (!setAudioConfiguration(&d->config, d->ic->streams[d->audioStream]->codec))
{
d->codec = (AVCodec *)avcodec_find_decoder(d->ic->streams[d->audioStream]->CODECPAR->codec_id);
if (!d->codec) {
std::cerr << "akode: FFMPEG: Codec not found\n";
closeFile();
return false;
}
d->codec = avcodec_find_decoder(d->ic->streams[d->audioStream]->CODECPAR->codec_id);
if (!d->codec) {
std::cerr << "akode: FFMPEG: Codec not found\n";
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 33, 100)
// allocate a codec context
d->audioStream_ctx = avcodec_alloc_context3(d->codec);
if (d->audioStream_ctx) {
avcodec_parameters_to_context(d->audioStream_ctx, d->ic->streams[d->audioStream]->codecpar);
}
else {
std::cerr << "akode: failed to allocate an audio codec context\n";
closeFile();
return false;
}
#else
d->audioStream_ctx = d->ic->streams[d->audioStream]->codec;
#endif
// Set config
if (!setAudioConfiguration(&d->config, d->audioStream_ctx))
{
closeFile();
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 33, 100)
avcodec_free_context(&d->audioStream_ctx);
#else
d->audioStream_ctx = NULL;
#endif
return false;
}
avcodec_open2( d->ic->streams[d->audioStream]->codec, d->codec, NULL );
avcodec_open2( d->audioStream_ctx, d->codec, NULL );
double ffpos = (double)d->ic->streams[d->audioStream]->start_time / (double)AV_TIME_BASE;
d->position = (long)(ffpos * d->config.sample_rate);
@ -239,20 +265,28 @@ void FFMPEGDecoder::closeFile() {
}
if( d->packetSize > 0 ) {
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57, 7, 0)
av_free_packet(&d->packet);
av_free_packet(&d->_packet);
#else
av_packet_unref( &d->packet );
av_packet_unref( d->packet );
#endif
d->packet = NULL;
d->packetSize = 0;
}
if( d->codec ) {
avcodec_close( d->ic->streams[d->audioStream]->codec );
avcodec_close( d->audioStream_ctx );
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 33, 100)
avcodec_free_context(&d->audioStream_ctx);
#else
d->audioStream_ctx = NULL;
#endif
d->codec = 0;
}
if( d->ic ) {
// make sure av_close_input_file doesn't actually close the file
#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(59, 0, 100)
d->ic->iformat->flags = d->ic->iformat->flags | AVFMT_NOFILE;
#endif
avformat_close_input( &d->ic );
d->ic = 0;
}
@ -263,27 +297,34 @@ void FFMPEGDecoder::closeFile() {
bool FFMPEGDecoder::readPacket() {
do {
av_init_packet(&d->packet);
if ( av_read_frame(d->ic, &d->packet) < 0 ) {
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
d->packet = av_packet_alloc();
#else
av_init_packet(&d->_packet);
d->packet = &d->_packet;
#endif
if ( av_read_frame(d->ic, d->packet) < 0 ) {
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57, 7, 0)
av_free_packet(&d->packet);
av_free_packet(&d->_packet);
#else
av_packet_unref( &d->packet );
av_packet_unref( d->packet );
#endif
d->packet = NULL;
d->packetSize = 0;
d->packetData = 0;
return false;
}
if (d->packet.stream_index == d->audioStream) {
d->packetSize = d->packet.size;
d->packetData = d->packet.data;
if (d->packet->stream_index == d->audioStream) {
d->packetSize = d->packet->size;
d->packetData = d->packet->data;
return true;
}
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57, 7, 0)
av_free_packet(&d->packet);
av_free_packet(&d->_packet);
#else
av_packet_unref(&d->packet);
av_packet_unref(d->packet);
#endif
d->packet = NULL;
} while (true);
return false;
@ -324,7 +365,7 @@ bool FFMPEGDecoder::readFrame(AudioFrame* frame)
return false;
}
assert(d->packet.stream_index == d->audioStream);
assert(d->packet->stream_index == d->audioStream);
retry:
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(55, 45, 101)
@ -336,19 +377,43 @@ retry:
return false;
}
int decoded;
int len = avcodec_decode_audio4( d->ic->streams[d->audioStream]->codec,
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
int len = avcodec_receive_frame(d->audioStream_ctx, decodeFrame);
if (len == 0) {
decoded = 1;
}
else if (len == AVERROR(EAGAIN)) {
len = 0;
}
if (len == 0) {
len = avcodec_send_packet(d->audioStream_ctx, d->packet);
if (len == AVERROR(EAGAIN)) {
len = 0;
}
else
{
len = d->packet->size;
d->packetSize = d->packet->size;
}
}
#else
int len = avcodec_decode_audio4( d->audioStream_ctx,
decodeFrame, &decoded,
&d->packet );
d->packet );
#if !defined(FFMPEG_AVFRAME_HAVE_PKT_SIZE)
d->packetSize = d->packet.size;
d->packetSize = d->packet->size;
#else
d->packetSize = decodeFrame->pkt_size;
#endif
#endif
d->buffer = decodeFrame->data;
#if !defined(FFMPEG_AVFRAME_HAVE_CHANNELS)
d->buffer_size = decodeFrame->nb_samples * d->ic->streams[d->audioStream]->codec->channels * av_get_bytes_per_sample(d->ic->streams[d->audioStream]->codec->sample_fmt);
d->buffer_size = decodeFrame->nb_samples * d->ic->streams[d->audioStream]->CODECPAR->channels * av_get_bytes_per_sample(d->ic->streams[d->audioStream]->codec->sample_fmt);
#else
d->buffer_size = decodeFrame->nb_samples * decodeFrame->channels * av_get_bytes_per_sample(d->ic->streams[d->audioStream]->codec->sample_fmt);
d->buffer_size = decodeFrame->nb_samples * decodeFrame->channels * av_get_bytes_per_sample(d->audioStream_ctx->sample_fmt);
#endif
if (len <= 0) {
@ -394,10 +459,11 @@ retry:
if( d->packetSize <= 0 )
{
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57, 7, 0)
av_free_packet(&d->packet);
av_free_packet(&d->_packet);
#else
av_packet_unref( &d->packet );
av_packet_unref( d->packet );
#endif
d->packet = NULL;
}
frame->pos = (d->position*1000)/d->config.sample_rate;

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