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-rw-r--r--src/decoder/FfmpegDecoderPlugin.cxx741
1 files changed, 0 insertions, 741 deletions
diff --git a/src/decoder/FfmpegDecoderPlugin.cxx b/src/decoder/FfmpegDecoderPlugin.cxx
deleted file mode 100644
index 9a00bf3c4..000000000
--- a/src/decoder/FfmpegDecoderPlugin.cxx
+++ /dev/null
@@ -1,741 +0,0 @@
-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/* necessary because libavutil/common.h uses UINT64_C */
-#define __STDC_CONSTANT_MACROS
-
-#include "config.h"
-#include "FfmpegDecoderPlugin.hxx"
-#include "DecoderAPI.hxx"
-#include "FfmpegMetaData.hxx"
-#include "tag/TagHandler.hxx"
-#include "InputStream.hxx"
-#include "CheckAudioFormat.hxx"
-#include "util/Error.hxx"
-#include "util/Domain.hxx"
-#include "LogV.hxx"
-
-extern "C" {
-#include <libavcodec/avcodec.h>
-#include <libavformat/avformat.h>
-#include <libavformat/avio.h>
-#include <libavutil/avutil.h>
-#include <libavutil/log.h>
-#include <libavutil/mathematics.h>
-
-#if LIBAVUTIL_VERSION_MAJOR >= 53
-#include <libavutil/frame.h>
-#endif
-}
-
-#include <assert.h>
-#include <string.h>
-
-static constexpr Domain ffmpeg_domain("ffmpeg");
-
-/* suppress the ffmpeg compatibility macro */
-#ifdef SampleFormat
-#undef SampleFormat
-#endif
-
-static LogLevel
-import_ffmpeg_level(int level)
-{
- if (level <= AV_LOG_FATAL)
- return LogLevel::ERROR;
-
- if (level <= AV_LOG_WARNING)
- return LogLevel::WARNING;
-
- if (level <= AV_LOG_INFO)
- return LogLevel::INFO;
-
- return LogLevel::DEBUG;
-}
-
-static void
-mpd_ffmpeg_log_callback(gcc_unused void *ptr, int level,
- const char *fmt, va_list vl)
-{
- const AVClass * cls = nullptr;
-
- if (ptr != nullptr)
- cls = *(const AVClass *const*)ptr;
-
- if (cls != nullptr) {
- char domain[64];
- snprintf(domain, sizeof(domain), "%s/%s",
- ffmpeg_domain.GetName(), cls->item_name(ptr));
- const Domain d(domain);
- LogFormatV(d, import_ffmpeg_level(level), fmt, vl);
- }
-}
-
-struct AvioStream {
- Decoder *const decoder;
- InputStream &input;
-
- AVIOContext *io;
-
- unsigned char buffer[8192];
-
- AvioStream(Decoder *_decoder, InputStream &_input)
- :decoder(_decoder), input(_input), io(nullptr) {}
-
- ~AvioStream() {
- if (io != nullptr)
- av_free(io);
- }
-
- bool Open();
-};
-
-static int
-mpd_ffmpeg_stream_read(void *opaque, uint8_t *buf, int size)
-{
- AvioStream *stream = (AvioStream *)opaque;
-
- return decoder_read(stream->decoder, stream->input,
- (void *)buf, size);
-}
-
-static int64_t
-mpd_ffmpeg_stream_seek(void *opaque, int64_t pos, int whence)
-{
- AvioStream *stream = (AvioStream *)opaque;
-
- if (whence == AVSEEK_SIZE)
- return stream->input.size;
-
- if (!stream->input.LockSeek(pos, whence, IgnoreError()))
- return -1;
-
- return stream->input.offset;
-}
-
-bool
-AvioStream::Open()
-{
- io = avio_alloc_context(buffer, sizeof(buffer),
- false, this,
- mpd_ffmpeg_stream_read, nullptr,
- input.seekable
- ? mpd_ffmpeg_stream_seek : nullptr);
- return io != nullptr;
-}
-
-/**
- * API compatibility wrapper for av_open_input_stream() and
- * avformat_open_input().
- */
-static int
-mpd_ffmpeg_open_input(AVFormatContext **ic_ptr,
- AVIOContext *pb,
- const char *filename,
- AVInputFormat *fmt)
-{
- AVFormatContext *context = avformat_alloc_context();
- if (context == nullptr)
- return AVERROR(ENOMEM);
-
- context->pb = pb;
- *ic_ptr = context;
- return avformat_open_input(ic_ptr, filename, fmt, nullptr);
-}
-
-static bool
-ffmpeg_init(gcc_unused const config_param &param)
-{
- av_log_set_callback(mpd_ffmpeg_log_callback);
-
- av_register_all();
- return true;
-}
-
-static int
-ffmpeg_find_audio_stream(const AVFormatContext *format_context)
-{
- for (unsigned i = 0; i < format_context->nb_streams; ++i)
- if (format_context->streams[i]->codec->codec_type ==
- AVMEDIA_TYPE_AUDIO)
- return i;
-
- return -1;
-}
-
-gcc_const
-static double
-time_from_ffmpeg(int64_t t, const AVRational time_base)
-{
- assert(t != (int64_t)AV_NOPTS_VALUE);
-
- return (double)av_rescale_q(t, time_base, (AVRational){1, 1024})
- / (double)1024;
-}
-
-gcc_const
-static int64_t
-time_to_ffmpeg(double t, const AVRational time_base)
-{
- return av_rescale_q((int64_t)(t * 1024), (AVRational){1, 1024},
- time_base);
-}
-
-/**
- * Replace #AV_NOPTS_VALUE with the given fallback.
- */
-static constexpr int64_t
-timestamp_fallback(int64_t t, int64_t fallback)
-{
- return gcc_likely(t != int64_t(AV_NOPTS_VALUE))
- ? t
- : fallback;
-}
-
-/**
- * Accessor for AVStream::start_time that replaces AV_NOPTS_VALUE with
- * zero. We can't use AV_NOPTS_VALUE in calculations, and we simply
- * assume that the stream's start time is zero, which appears to be
- * the best way out of that situation.
- */
-static int64_t
-start_time_fallback(const AVStream &stream)
-{
- return timestamp_fallback(stream.start_time, 0);
-}
-
-static void
-copy_interleave_frame2(uint8_t *dest, uint8_t **src,
- unsigned nframes, unsigned nchannels,
- unsigned sample_size)
-{
- for (unsigned frame = 0; frame < nframes; ++frame) {
- for (unsigned channel = 0; channel < nchannels; ++channel) {
- memcpy(dest, src[channel] + frame * sample_size,
- sample_size);
- dest += sample_size;
- }
- }
-}
-
-/**
- * Copy PCM data from a AVFrame to an interleaved buffer.
- */
-static int
-copy_interleave_frame(const AVCodecContext *codec_context,
- const AVFrame *frame,
- uint8_t **output_buffer,
- uint8_t **global_buffer, int *global_buffer_size)
-{
- int plane_size;
- const int data_size =
- av_samples_get_buffer_size(&plane_size,
- codec_context->channels,
- frame->nb_samples,
- codec_context->sample_fmt, 1);
- if (data_size <= 0)
- return data_size;
-
- if (av_sample_fmt_is_planar(codec_context->sample_fmt) &&
- codec_context->channels > 1) {
- if(*global_buffer_size < data_size) {
- av_freep(global_buffer);
-
- *global_buffer = (uint8_t*)av_malloc(data_size);
-
- if (!*global_buffer)
- /* Not enough memory - shouldn't happen */
- return AVERROR(ENOMEM);
- *global_buffer_size = data_size;
- }
- *output_buffer = *global_buffer;
- copy_interleave_frame2(*output_buffer, frame->extended_data,
- frame->nb_samples,
- codec_context->channels,
- av_get_bytes_per_sample(codec_context->sample_fmt));
- } else {
- *output_buffer = frame->extended_data[0];
- }
-
- return data_size;
-}
-
-static DecoderCommand
-ffmpeg_send_packet(Decoder &decoder, InputStream &is,
- const AVPacket *packet,
- AVCodecContext *codec_context,
- const AVStream *stream,
- AVFrame *frame,
- uint8_t **buffer, int *buffer_size)
-{
- if (packet->pts >= 0 && packet->pts != (int64_t)AV_NOPTS_VALUE) {
- auto start = start_time_fallback(*stream);
- if (packet->pts >= start)
- decoder_timestamp(decoder,
- time_from_ffmpeg(packet->pts - start,
- stream->time_base));
- }
-
- AVPacket packet2 = *packet;
-
- uint8_t *output_buffer;
-
- DecoderCommand cmd = DecoderCommand::NONE;
- while (packet2.size > 0 && cmd == DecoderCommand::NONE) {
- int audio_size = 0;
- int got_frame = 0;
- int len = avcodec_decode_audio4(codec_context,
- frame, &got_frame,
- &packet2);
- if (len >= 0 && got_frame) {
- audio_size = copy_interleave_frame(codec_context,
- frame,
- &output_buffer,
- buffer, buffer_size);
- if (audio_size < 0)
- len = audio_size;
- }
-
- if (len < 0) {
- /* if error, we skip the frame */
- LogDefault(ffmpeg_domain,
- "decoding failed, frame skipped");
- break;
- }
-
- packet2.data += len;
- packet2.size -= len;
-
- if (audio_size <= 0)
- continue;
-
- cmd = decoder_data(decoder, is,
- output_buffer, audio_size,
- codec_context->bit_rate / 1000);
- }
- return cmd;
-}
-
-gcc_const
-static SampleFormat
-ffmpeg_sample_format(enum AVSampleFormat sample_fmt)
-{
- switch (sample_fmt) {
- case AV_SAMPLE_FMT_S16:
- case AV_SAMPLE_FMT_S16P:
- return SampleFormat::S16;
-
- case AV_SAMPLE_FMT_S32:
- case AV_SAMPLE_FMT_S32P:
- return SampleFormat::S32;
-
- case AV_SAMPLE_FMT_FLTP:
- return SampleFormat::FLOAT;
-
- default:
- break;
- }
-
- char buffer[64];
- const char *name = av_get_sample_fmt_string(buffer, sizeof(buffer),
- sample_fmt);
- if (name != nullptr)
- FormatError(ffmpeg_domain,
- "Unsupported libavcodec SampleFormat value: %s (%d)",
- name, sample_fmt);
- else
- FormatError(ffmpeg_domain,
- "Unsupported libavcodec SampleFormat value: %d",
- sample_fmt);
- return SampleFormat::UNDEFINED;
-}
-
-static AVInputFormat *
-ffmpeg_probe(Decoder *decoder, InputStream &is)
-{
- enum {
- BUFFER_SIZE = 16384,
- PADDING = 16,
- };
-
- unsigned char buffer[BUFFER_SIZE];
- size_t nbytes = decoder_read(decoder, is, buffer, BUFFER_SIZE);
- if (nbytes <= PADDING || !is.LockRewind(IgnoreError()))
- return nullptr;
-
- /* some ffmpeg parsers (e.g. ac3_parser.c) read a few bytes
- beyond the declared buffer limit, which makes valgrind
- angry; this workaround removes some padding from the buffer
- size */
- nbytes -= PADDING;
-
- AVProbeData avpd;
-
- /* new versions of ffmpeg may add new attributes, and leaving
- them uninitialized may crash; hopefully, zero-initializing
- everything we don't know is ok */
- memset(&avpd, 0, sizeof(avpd));
-
- avpd.buf = buffer;
- avpd.buf_size = nbytes;
- avpd.filename = is.uri.c_str();
-
-#ifdef AVPROBE_SCORE_MIME
-#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(56, 5, 1)
- /* this attribute was added in libav/ffmpeg version 11, but
- unfortunately it's "uint8_t" instead of "char", and it's
- not "const" - wtf? */
- avpd.mime_type = (uint8_t *)const_cast<char *>(is.GetMimeType());
-#else
- /* API problem fixed in FFmpeg 2.5 */
- avpd.mime_type = is.GetMimeType();
-#endif
-#endif
-
- return av_probe_input_format(&avpd, true);
-}
-
-static void
-ffmpeg_decode(Decoder &decoder, InputStream &input)
-{
- AVInputFormat *input_format = ffmpeg_probe(&decoder, input);
- if (input_format == nullptr)
- return;
-
- FormatDebug(ffmpeg_domain, "detected input format '%s' (%s)",
- input_format->name, input_format->long_name);
-
- AvioStream stream(&decoder, input);
- if (!stream.Open()) {
- LogError(ffmpeg_domain, "Failed to open stream");
- return;
- }
-
- //ffmpeg works with ours "fileops" helper
- AVFormatContext *format_context = nullptr;
- if (mpd_ffmpeg_open_input(&format_context, stream.io,
- input.uri.c_str(),
- input_format) != 0) {
- LogError(ffmpeg_domain, "Open failed");
- return;
- }
-
- const int find_result =
- avformat_find_stream_info(format_context, nullptr);
- if (find_result < 0) {
- LogError(ffmpeg_domain, "Couldn't find stream info");
- avformat_close_input(&format_context);
- return;
- }
-
- int audio_stream = ffmpeg_find_audio_stream(format_context);
- if (audio_stream == -1) {
- LogError(ffmpeg_domain, "No audio stream inside");
- avformat_close_input(&format_context);
- return;
- }
-
- AVStream *av_stream = format_context->streams[audio_stream];
-
- AVCodecContext *codec_context = av_stream->codec;
-
-#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(54, 25, 0)
- const AVCodecDescriptor *codec_descriptor =
- avcodec_descriptor_get(codec_context->codec_id);
- if (codec_descriptor != nullptr)
- FormatDebug(ffmpeg_domain, "codec '%s'",
- codec_descriptor->name);
-#else
- if (codec_context->codec_name[0] != 0)
- FormatDebug(ffmpeg_domain, "codec '%s'",
- codec_context->codec_name);
-#endif
-
- AVCodec *codec = avcodec_find_decoder(codec_context->codec_id);
-
- if (!codec) {
- LogError(ffmpeg_domain, "Unsupported audio codec");
- avformat_close_input(&format_context);
- return;
- }
-
- const SampleFormat sample_format =
- ffmpeg_sample_format(codec_context->sample_fmt);
- if (sample_format == SampleFormat::UNDEFINED)
- return;
-
- Error error;
- AudioFormat audio_format;
- if (!audio_format_init_checked(audio_format,
- codec_context->sample_rate,
- sample_format,
- codec_context->channels, error)) {
- LogError(error);
- avformat_close_input(&format_context);
- return;
- }
-
- /* the audio format must be read from AVCodecContext by now,
- because avcodec_open() has been demonstrated to fill bogus
- values into AVCodecContext.channels - a change that will be
- reverted later by avcodec_decode_audio3() */
-
- const int open_result = avcodec_open2(codec_context, codec, nullptr);
- if (open_result < 0) {
- LogError(ffmpeg_domain, "Could not open codec");
- avformat_close_input(&format_context);
- return;
- }
-
- int total_time = format_context->duration != (int64_t)AV_NOPTS_VALUE
- ? format_context->duration / AV_TIME_BASE
- : 0;
-
- decoder_initialized(decoder, audio_format,
- input.seekable, total_time);
-
-#if LIBAVUTIL_VERSION_MAJOR >= 53
- AVFrame *frame = av_frame_alloc();
-#else
- AVFrame *frame = avcodec_alloc_frame();
-#endif
- if (!frame) {
- LogError(ffmpeg_domain, "Could not allocate frame");
- avformat_close_input(&format_context);
- return;
- }
-
- uint8_t *interleaved_buffer = nullptr;
- int interleaved_buffer_size = 0;
-
- DecoderCommand cmd;
- do {
- AVPacket packet;
- if (av_read_frame(format_context, &packet) < 0)
- /* end of file */
- break;
-
- if (packet.stream_index == audio_stream)
- cmd = ffmpeg_send_packet(decoder, input,
- &packet, codec_context,
- av_stream,
- frame,
- &interleaved_buffer, &interleaved_buffer_size);
- else
- cmd = decoder_get_command(decoder);
-
- av_free_packet(&packet);
-
- if (cmd == DecoderCommand::SEEK) {
- int64_t where =
- time_to_ffmpeg(decoder_seek_where(decoder),
- av_stream->time_base) +
- start_time_fallback(*av_stream);
-
- if (av_seek_frame(format_context, audio_stream, where,
- AVSEEK_FLAG_ANY) < 0)
- decoder_seek_error(decoder);
- else {
- avcodec_flush_buffers(codec_context);
- decoder_command_finished(decoder);
- }
- }
- } while (cmd != DecoderCommand::STOP);
-
-#if LIBAVUTIL_VERSION_MAJOR >= 53
- av_frame_free(&frame);
-#elif LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(54, 28, 0)
- avcodec_free_frame(&frame);
-#else
- av_freep(&frame);
-#endif
- av_freep(&interleaved_buffer);
-
- avcodec_close(codec_context);
- avformat_close_input(&format_context);
-}
-
-//no tag reading in ffmpeg, check if playable
-static bool
-ffmpeg_scan_stream(InputStream &is,
- const struct tag_handler *handler, void *handler_ctx)
-{
- AVInputFormat *input_format = ffmpeg_probe(nullptr, is);
- if (input_format == nullptr)
- return false;
-
- AvioStream stream(nullptr, is);
- if (!stream.Open())
- return false;
-
- AVFormatContext *f = nullptr;
- if (mpd_ffmpeg_open_input(&f, stream.io, is.uri.c_str(),
- input_format) != 0)
- return false;
-
- const int find_result =
- avformat_find_stream_info(f, nullptr);
- if (find_result < 0) {
- avformat_close_input(&f);
- return false;
- }
-
- if (f->duration != (int64_t)AV_NOPTS_VALUE)
- tag_handler_invoke_duration(handler, handler_ctx,
- f->duration / AV_TIME_BASE);
-
- ffmpeg_scan_dictionary(f->metadata, handler, handler_ctx);
- int idx = ffmpeg_find_audio_stream(f);
- if (idx >= 0)
- ffmpeg_scan_dictionary(f->streams[idx]->metadata,
- handler, handler_ctx);
-
- avformat_close_input(&f);
- return true;
-}
-
-/**
- * A list of extensions found for the formats supported by ffmpeg.
- * This list is current as of 02-23-09; To find out if there are more
- * supported formats, check the ffmpeg changelog since this date for
- * more formats.
- */
-static const char *const ffmpeg_suffixes[] = {
- "16sv", "3g2", "3gp", "4xm", "8svx", "aa3", "aac", "ac3", "afc", "aif",
- "aifc", "aiff", "al", "alaw", "amr", "anim", "apc", "ape", "asf",
- "atrac", "au", "aud", "avi", "avm2", "avs", "bap", "bfi", "c93", "cak",
- "cin", "cmv", "cpk", "daud", "dct", "divx", "dts", "dv", "dvd", "dxa",
- "eac3", "film", "flac", "flc", "fli", "fll", "flx", "flv", "g726",
- "gsm", "gxf", "iss", "m1v", "m2v", "m2t", "m2ts",
- "m4a", "m4b", "m4v",
- "mad",
- "mj2", "mjpeg", "mjpg", "mka", "mkv", "mlp", "mm", "mmf", "mov", "mp+",
- "mp1", "mp2", "mp3", "mp4", "mpc", "mpeg", "mpg", "mpga", "mpp", "mpu",
- "mve", "mvi", "mxf", "nc", "nsv", "nut", "nuv", "oga", "ogm", "ogv",
- "ogx", "oma", "ogg", "omg", "opus", "psp", "pva", "qcp", "qt", "r3d", "ra",
- "ram", "rl2", "rm", "rmvb", "roq", "rpl", "rvc", "shn", "smk", "snd",
- "sol", "son", "spx", "str", "swf", "tgi", "tgq", "tgv", "thp", "ts",
- "tsp", "tta", "xa", "xvid", "uv", "uv2", "vb", "vid", "vob", "voc",
- "vp6", "vmd", "wav", "webm", "wma", "wmv", "wsaud", "wsvga", "wv",
- "wve",
- nullptr
-};
-
-static const char *const ffmpeg_mime_types[] = {
- "application/flv",
- "application/m4a",
- "application/mp4",
- "application/octet-stream",
- "application/ogg",
- "application/x-ms-wmz",
- "application/x-ms-wmd",
- "application/x-ogg",
- "application/x-shockwave-flash",
- "application/x-shorten",
- "audio/8svx",
- "audio/16sv",
- "audio/aac",
- "audio/aacp",
- "audio/ac3",
- "audio/aiff"
- "audio/amr",
- "audio/basic",
- "audio/flac",
- "audio/m4a",
- "audio/mp4",
- "audio/mpeg",
- "audio/musepack",
- "audio/ogg",
- "audio/opus",
- "audio/qcelp",
- "audio/vorbis",
- "audio/vorbis+ogg",
- "audio/x-8svx",
- "audio/x-16sv",
- "audio/x-aac",
- "audio/x-ac3",
- "audio/x-aiff"
- "audio/x-alaw",
- "audio/x-au",
- "audio/x-dca",
- "audio/x-eac3",
- "audio/x-flac",
- "audio/x-gsm",
- "audio/x-mace",
- "audio/x-matroska",
- "audio/x-monkeys-audio",
- "audio/x-mpeg",
- "audio/x-ms-wma",
- "audio/x-ms-wax",
- "audio/x-musepack",
- "audio/x-ogg",
- "audio/x-vorbis",
- "audio/x-vorbis+ogg",
- "audio/x-pn-realaudio",
- "audio/x-pn-multirate-realaudio",
- "audio/x-speex",
- "audio/x-tta"
- "audio/x-voc",
- "audio/x-wav",
- "audio/x-wma",
- "audio/x-wv",
- "video/anim",
- "video/quicktime",
- "video/msvideo",
- "video/ogg",
- "video/theora",
- "video/webm",
- "video/x-dv",
- "video/x-flv",
- "video/x-matroska",
- "video/x-mjpeg",
- "video/x-mpeg",
- "video/x-ms-asf",
- "video/x-msvideo",
- "video/x-ms-wmv",
- "video/x-ms-wvx",
- "video/x-ms-wm",
- "video/x-ms-wmx",
- "video/x-nut",
- "video/x-pva",
- "video/x-theora",
- "video/x-vid",
- "video/x-wmv",
- "video/x-xvid",
-
- /* special value for the "ffmpeg" input plugin: all streams by
- the "ffmpeg" input plugin shall be decoded by this
- plugin */
- "audio/x-mpd-ffmpeg",
-
- nullptr
-};
-
-const struct DecoderPlugin ffmpeg_decoder_plugin = {
- "ffmpeg",
- ffmpeg_init,
- nullptr,
- ffmpeg_decode,
- nullptr,
- nullptr,
- ffmpeg_scan_stream,
- nullptr,
- ffmpeg_suffixes,
- ffmpeg_mime_types
-};