From 9e2710c9d865c68bf98780d63db595a8ad624e48 Mon Sep 17 00:00:00 2001 From: aneejit1 Date: Mon, 9 May 2022 23:25:49 +0000 Subject: Implement ffmpeg 5.0 support 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 --- akode/plugins/ffmpeg_decoder/ffmpeg_decoder.cpp | 134 ++++++++++++++++++------ 1 file changed, 100 insertions(+), 34 deletions(-) diff --git a/akode/plugins/ffmpeg_decoder/ffmpeg_decoder.cpp b/akode/plugins/ffmpeg_decoder/ffmpeg_decoder.cpp index 4d347c4..25d9297 100644 --- a/akode/plugins/ffmpeg_decoder/ffmpeg_decoder.cpp +++ b/akode/plugins/ffmpeg_decoder/ffmpeg_decoder.cpp @@ -37,7 +37,7 @@ extern "C" { #include "ffmpeg_decoder.h" #include -#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; -- cgit v1.2.1