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ffmpeg.c
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ffmpeg.c
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/*
DeaDBeeF - The Ultimate Music Player
Copyright (C) 2009-2013 Oleksiy Yakovenko <waker@users.sourceforge.net>
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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//#include <alloca.h>
#include <errno.h>
#include <deadbeef/deadbeef.h>
#include <deadbeef/strdupa.h>
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libavutil/avutil.h>
#include <libavutil/avstring.h>
#define avcodec_free_frame(frame) av_frame_free(frame)
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57, 8, 0)
#define av_packet_unref(packet) av_free_packet(packet)
#endif
//#define trace(...) { fprintf(stderr, __VA_ARGS__); }
#define trace(fmt,...)
#define min(x,y) ((x)<(y)?(x):(y))
#define max(x,y) ((x)>(y)?(x):(y))
static ddb_decoder2_t plugin;
static DB_functions_t *deadbeef;
#define DEFAULT_EXTS "aa3;oma;ac3;vqf;amr;tak;dsf;dff;wma;3gp;mp4;m4a"
#define UNPOPULATED_EXTS_BY_FFMPEG \
"aif,aiff,afc,aifc,amr,asf," \
"wmv,wma,au,caf,webm," \
"gxf,lbc,mmf,mpg,mpeg,ts,m2t," \
"m2ts,mts,mxf,rm,ra,roq,sox," \
"spdif,swf,rcv,voc,w64,wav,wv"
#define EXT_MAX 1024
static char * exts[EXT_MAX+1] = {NULL};
static int enable_dop = 0;
typedef struct {
DB_fileinfo_t info;
const AVCodec *codec;
AVCodecContext *codec_context;
int need_to_free_codec_context;
AVFormatContext *format_context;
AVPacket pkt;
AVFrame *frame;
int stream_id;
int left_in_packet;
int have_packet;
char *buffer;
size_t left_in_buffer;
size_t buffer_size;
int64_t startsample;
int64_t endsample;
int64_t currentsample;
} ffmpeg_info_t;
static DB_fileinfo_t *
ffmpeg_open (uint32_t hints) {
ffmpeg_info_t *info = calloc (1, sizeof (ffmpeg_info_t));
return &info->info;
}
static const uint8_t bit_reverse_table[256] =
{
#define R2(n) n, n + 2*64, n + 1*64, n + 3*64
#define R4(n) R2(n), R2(n + 2*16), R2(n + 1*16), R2(n + 3*16)
#define R6(n) R4(n), R4(n + 2*4 ), R4(n + 1*4 ), R4(n + 3*4 )
R6(0), R6(2), R6(1), R6(3)
#undef R2
#undef R4
#undef R6
};
int is_codec_dsd(enum AVCodecID codec_id) {
switch(codec_id) {
case AV_CODEC_ID_DSD_LSBF:
case AV_CODEC_ID_DSD_LSBF_PLANAR:
case AV_CODEC_ID_DSD_MSBF:
case AV_CODEC_ID_DSD_MSBF_PLANAR:
return 1;
break;
default:
return 0;
}
}
// ensure that the buffer can contain entire frame of frame_size bytes per channel
static int
ensure_buffer (ffmpeg_info_t *info, size_t frame_size) {
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 0, 0)
if (!info->buffer || info->buffer_size < frame_size * info->codec_context->ch_layout.nb_channels) {
#else
if (!info->buffer || info->buffer_size < frame_size * info->codec_context->channels) {
#endif
if (info->buffer) {
free (info->buffer);
info->buffer = NULL;
}
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 0, 0)
info->buffer_size = frame_size*info->codec_context->ch_layout.nb_channels;
#else
info->buffer_size = frame_size*info->codec_context->channels;
#endif
info->left_in_buffer = 0;
int err = posix_memalign ((void **)&info->buffer, 16, info->buffer_size);
if (err) {
fprintf (stderr, "ffmpeg: failed to allocate %ld bytes of buffer memory\n", (long)info->buffer_size);
return -1;
}
}
return 0;
}
static int
_get_audio_codec_from_stream(AVFormatContext *format_context, int stream_index, ffmpeg_info_t *info) {
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 33, 0)
if (format_context->streams[stream_index]->codecpar->codec_type != AVMEDIA_TYPE_AUDIO) {
return 0;
}
const AVCodec *codec = avcodec_find_decoder(format_context->streams[stream_index]->codecpar->codec_id);
if (codec == NULL) {
return 0;
}
info->codec = codec;
info->stream_id = stream_index;
info->codec_context = avcodec_alloc_context3 (info->codec);
info->need_to_free_codec_context = 1;
avcodec_parameters_to_context(info->codec_context, format_context->streams[stream_index]->codecpar);
#else
if (format_context->streams[stream_index]->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
return 0;
}
AVCodecContext *ctx = format_context->streams[stream_index]->codec;
if (ctx == NULL) {
return 0;
}
const AVCodec *codec = avcodec_find_decoder (ctx->codec_id);
if (codec == NULL) {
return 0;
}
info->codec_context = ctx;
info->codec = codec;
info->stream_id = stream_index;
#endif
return 1;
}
static int
ffmpeg_init (DB_fileinfo_t *_info, DB_playItem_t *it) {
// Don't allow playing network streams.
// Even when ffmpeg has network support, it's causing too many problems this way.
const char *fname = deadbeef->pl_find_meta (it, ":URI");
if (!deadbeef->is_local_file (fname)) {
return -1;
}
ffmpeg_info_t *info = (ffmpeg_info_t *)_info;
trace ("ffmpeg init %s\n", deadbeef->pl_find_meta (it, ":URI"));
// prepare to decode the track
// return -1 on failure
int ret;
char *uri = NULL;
int i;
deadbeef->pl_lock ();
{
const char *fname = deadbeef->pl_find_meta (it, ":URI");
uri = strdupa (fname);
}
deadbeef->pl_unlock ();
trace ("ffmpeg: uri: %s\n", uri);
// open file
trace ("\033[0;31mffmpeg av_open_input_file\033[37;0m\n");
info->format_context = avformat_alloc_context ();
if ((ret = avformat_open_input(&info->format_context, uri, NULL, NULL)) < 0) {
trace ("\033[0;31minfo->fctx is %p, ret %d/%s\033[0;31m\n", info->fctx, ret, strerror(-ret));
return -1;
}
trace ("\033[0;31mav_open_input_file done, ret=%d\033[0;31m\n", ret);
trace ("\033[0;31mffmpeg avformat_find_stream_info\033[37;0m\n");
info->stream_id = -1;
info->format_context->max_analyze_duration = AV_TIME_BASE;
avformat_find_stream_info(info->format_context, NULL);
AVFormatContext *fctx = info->format_context;
for (i = 0; i < info->format_context->nb_streams; i++) {
if (_get_audio_codec_from_stream (fctx, i, info)) {
break;
}
}
if (info->codec == NULL)
{
trace ("ffmpeg can't decode %s\n", deadbeef->pl_find_meta (it, ":URI"));
return -1;
}
trace ("ffmpeg can decode %s\n", deadbeef->pl_find_meta (it, ":URI"));
trace ("ffmpeg: codec=%s, stream=%d\n", info->codec->name, i);
if (avcodec_open2 (info->codec_context, info->codec, NULL) < 0) {
trace ("ffmpeg: avcodec_open2 failed\n");
return -1;
}
deadbeef->pl_replace_meta (it, "!FILETYPE", info->codec->name);
int bps = av_get_bytes_per_sample (info->codec_context->sample_fmt)*8;
int samplerate = info->codec_context->sample_rate;
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 0, 0)
if (bps <= 0 || info->codec_context->ch_layout.nb_channels <= 0 || samplerate <= 0) {
#else
if (bps <= 0 || info->codec_context->channels <= 0 || samplerate <= 0) {
#endif
return -1;
}
int64_t totalsamples = info->format_context->duration * samplerate / AV_TIME_BASE;
info->left_in_packet = 0;
info->left_in_buffer = 0;
memset (&info->pkt, 0, sizeof (info->pkt));
info->have_packet = 0;
info->frame = av_frame_alloc();
// fill in mandatory plugin fields
_info->plugin = &plugin.decoder;
_info->readpos = 0;
_info->fmt.bps = bps;
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 0, 0)
_info->fmt.channels = info->codec_context->ch_layout.nb_channels;
#else
_info->fmt.channels = info->codec_context->channels;
#endif
_info->fmt.samplerate = samplerate;
if (info->codec_context->sample_fmt == AV_SAMPLE_FMT_FLT || info->codec_context->sample_fmt == AV_SAMPLE_FMT_FLTP) {
_info->fmt.is_float = 1;
}
if (enable_dop && is_codec_dsd(info->codec_context->codec_id)) {
_info->fmt.is_float = 0;
_info->fmt.bps = 32;
_info->fmt.samplerate = info->codec_context->sample_rate / 2;
_info->fmt.flags |= DDB_WAVEFORMAT_FLAG_IS_DOP;
}
// FIXME: channel layout from ffmpeg
// int64_t layout = info->ctx->channel_layout;
for (int i = 0; i < _info->fmt.channels; i++) {
_info->fmt.channelmask |= 1 << i;
}
// subtrack info
info->currentsample = 0;
int64_t endsample = deadbeef->pl_item_get_endsample (it);
if (endsample > 0) {
info->startsample = deadbeef->pl_item_get_startsample (it);
info->endsample = endsample;
plugin.seek_sample64 (_info, 0);
}
else {
info->startsample = 0;
info->endsample = totalsamples - 1;
}
return 0;
}
static void
_free_info_data(ffmpeg_info_t *info) {
if (info->frame) {
avcodec_free_frame(&info->frame);
}
if (info->buffer) {
free (info->buffer);
}
// free everything allocated in _init and _read
if (info->have_packet) {
av_packet_unref (&info->pkt);
}
if (info->codec_context) {
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(61, 0, 0)
avcodec_close (info->codec_context);
#endif
// The ctx is owned by AVFormatContext in legacy mode
if (info->need_to_free_codec_context) {
avcodec_free_context (&info->codec_context);
}
}
if (info->format_context) {
avformat_close_input (&info->format_context);
}
}
static void
ffmpeg_free (DB_fileinfo_t *_info) {
trace ("ffmpeg: free\n");
ffmpeg_info_t *info = (ffmpeg_info_t*)_info;
if (info) {
_free_info_data(info);
free (info);
}
}
static int
ffmpeg_read (DB_fileinfo_t *_info, char *bytes, int size) {
trace ("ffmpeg_read_int16 %d\n", size);
ffmpeg_info_t *info = (ffmpeg_info_t*)_info;
if (enable_dop && is_codec_dsd(info->codec_context->codec_id)) {
_info->fmt.samplerate = info->codec_context->sample_rate / 2;
_info->fmt.bps = 32;
_info->fmt.is_float = 0;
_info->fmt.flags |= DDB_WAVEFORMAT_FLAG_IS_DOP;
} else {
_info->fmt.samplerate = info->codec_context->sample_rate;
_info->fmt.bps = av_get_bytes_per_sample (info->codec_context->sample_fmt) * 8;
_info->fmt.is_float = (info->codec_context->sample_fmt == AV_SAMPLE_FMT_FLT || info->codec_context->sample_fmt == AV_SAMPLE_FMT_FLTP);
_info->fmt.flags &= ~DDB_WAVEFORMAT_FLAG_IS_DOP;
}
int samplesize = _info->fmt.channels * _info->fmt.bps / 8;
if (info->endsample >= 0 && info->currentsample + size / samplesize > info->endsample) {
if ((info->endsample - info->currentsample + 1) * samplesize <= 0) {
return 0;
}
}
int initsize = size;
int encsize = 0;
int decsize = 0;
while (size > 0) {
if (info->left_in_buffer > 0) {
size_t nsamples = size / samplesize;
size_t nsamples_buf = info->left_in_buffer / samplesize;
nsamples = min (nsamples, nsamples_buf);
size_t sz = nsamples * samplesize;
memcpy (bytes, info->buffer, nsamples*samplesize);
bytes += nsamples * samplesize;
size -= nsamples * samplesize;
if (sz != info->left_in_buffer) {
memmove (info->buffer, info->buffer+sz, info->left_in_buffer-sz);
}
info->left_in_buffer -= sz;
}
while (info->left_in_packet > 0 && size > 0) {
size_t out_size = info->buffer_size;
int len = 0;
//trace ("in: out_size=%d(%d), size=%d\n", out_size, AVCODEC_MAX_AUDIO_FRAME_SIZE, size);
if (enable_dop && is_codec_dsd(info->codec_context->codec_id)) {
len = info->pkt.size;
} else {
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(55, 28, 0)
int ret = avcodec_send_packet (info->codec_context, &info->pkt);
if (ret < 0) {
break;
}
ret = avcodec_receive_frame (info->codec_context,info->frame);
if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
break;
}
else {
len = info->pkt.size;
}
#else
int got_frame = 0;
len = avcodec_decode_audio4(info->ctx, info->frame, &got_frame, &info->pkt);
#endif
}
if (len > 0) {
if (enable_dop && is_codec_dsd(info->codec_context->codec_id)) {
out_size = info->pkt.size * 2;
if (ensure_buffer (info, info->pkt.duration * 2)) {
return -1;
}
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 0, 0)
int chCnt = info->codec_context->ch_layout.nb_channels;
#else
int chCnt = info->codec_context->channels;
#endif
int chSize = info->pkt.size / chCnt;
uint32_t *pOut = (uint32_t *)info->buffer;
uint8_t marker = 0x05;
if (info->codec_context->codec_id == AV_CODEC_ID_DSD_LSBF_PLANAR ||
info->codec_context->codec_id == AV_CODEC_ID_DSD_MSBF_PLANAR) {
uint8_t* pIn[chCnt];
for (int i = 0; i < chCnt; i++) {
pIn[i] = info->pkt.data + chSize * i;
}
if (info->codec_context->codec_id == AV_CODEC_ID_DSD_LSBF_PLANAR) {
for (int i = 0; i < chSize; i+=2) {
for (int ch = 0; ch < chCnt; ch++) {
*pOut++ = (uint32_t)marker << 24 |
bit_reverse_table[*pIn[ch]] << 16 |
bit_reverse_table[*(pIn[ch] + 1)] << 8;
pIn[ch] += 2;
}
marker = ~marker;
}
}
else {
for (int i = 0; i < chSize / 2; i++) {
for (int ch = 0; ch < chCnt; ch++) {
*pOut++ = (uint32_t)marker << 24 |
*pIn[ch] << 16 |
*(pIn[ch] + 1) << 8;
pIn[ch] += 2;
}
marker = ~marker;
}
}
}
else {
uint8_t* pIn = info->pkt.data;
if (info->codec_context->codec_id == AV_CODEC_ID_DSD_LSBF) {
for (int i = 0; i < chSize / 2; i++) {
for (int ch = 0; ch < chCnt; ch++) {
*pOut++ = (uint32_t)marker << 24 |
bit_reverse_table[*(pIn + ch)] << 16 |
bit_reverse_table[*(pIn + ch + chCnt)] << 8;
}
pIn += chCnt * 2;
marker = ~marker;
}
}
else {
for (int i = 0; i < chSize / 2; i++) {
for (int ch = 0; ch < chCnt; ch++) {
*pOut++ = (uint32_t)marker << 24 |
*(pIn + ch) << 16 |
*(pIn + ch + chCnt) << 8;
}
pIn += chCnt * 2;
marker = ~marker;
}
}
}
} else {
if (ensure_buffer (info, info->frame->nb_samples * (_info->fmt.bps >> 3))) {
return -1;
}
if (av_sample_fmt_is_planar(info->codec_context->sample_fmt)) {
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 0, 0)
int chCnt = info->codec_context->ch_layout.nb_channels;
#else
int chCnt = info->codec_context->channels;
#endif
out_size = 0;
for (int c = 0; c < chCnt; c++) {
for (int i = 0; i < info->frame->nb_samples; i++) {
if (_info->fmt.bps == 8) {
info->buffer[i*chCnt+c] = ((int8_t *)info->frame->extended_data[c])[i];
out_size++;
}
else if (_info->fmt.bps == 16) {
int16_t outsample = ((int16_t *)info->frame->extended_data[c])[i];
((int16_t*)info->buffer)[i*chCnt+c] = outsample;
out_size += 2;
}
else if (_info->fmt.bps == 24) {
memcpy (&info->buffer[(i*chCnt+c)*3], &((int8_t*)info->frame->extended_data[c])[i*3], 3);
out_size += 3;
}
else if (_info->fmt.bps == 32) {
int32_t sample = ((int32_t *)info->frame->extended_data[c])[i];
((int32_t*)info->buffer)[i*chCnt+c] = sample;
out_size += 4;
}
}
}
}
else {
out_size = info->frame->nb_samples * (_info->fmt.bps >> 3) * _info->fmt.channels;
memcpy (info->buffer, info->frame->extended_data[0], out_size);
}
}
}
trace ("out: out_size=%d, len=%d\n", out_size, len);
if (len <= 0) {
break;
}
encsize += len;
decsize += out_size;
info->left_in_packet -= len;
info->left_in_buffer = out_size;
}
if (size == 0) {
break;
}
// read next packet
if (info->have_packet) {
av_packet_unref (&info->pkt);
info->have_packet = 0;
}
int errcount = 0;
for (;;) {
int ret;
if ((ret = av_read_frame (info->format_context, &info->pkt)) < 0) {
trace ("ffmpeg: error %d\n", ret);
if (ret == AVERROR_EOF || ret == -1) {
ret = -1;
break;
}
else {
if (++errcount > 4) {
trace ("ffmpeg: too many errors in a row (last is %d); interrupting stream\n", ret);
ret = -1;
break;
}
else {
continue;
}
}
}
else {
trace ("av packet size: %d, numframes: %d\n", info->pkt.size, ret);
errcount = 0;
}
if (ret == -1) {
break;
}
//trace ("idx:%d, stream:%d\n", info->pkt.stream_index, info->stream_id);
if (info->pkt.stream_index != info->stream_id) {
av_packet_unref (&info->pkt);
continue;
}
//trace ("got packet: size=%d\n", info->pkt.size);
info->have_packet = 1;
info->left_in_packet = info->pkt.size;
if (info->pkt.duration > 0) {
AVRational *time_base = &info->format_context->streams[info->stream_id]->time_base;
float sec = (float)info->pkt.duration * time_base->num / time_base->den;
int bitrate = info->pkt.size * 8 / sec;
if (bitrate > 0) {
deadbeef->streamer_set_bitrate (bitrate / 1000);
}
}
break;
}
if (!info->have_packet) {
break;
}
}
info->currentsample += (initsize-size) / samplesize;
_info->readpos = (float)info->currentsample / _info->fmt.samplerate;
return initsize-size;
}
static int
ffmpeg_seek_sample64 (DB_fileinfo_t *_info, int64_t sample) {
ffmpeg_info_t *info = (ffmpeg_info_t*)_info;
// seek to specified sample (frame)
// return 0 on success
// return -1 on failure
if (info->have_packet) {
av_packet_unref (&info->pkt);
info->have_packet = 0;
}
sample += info->startsample;
int64_t tm = sample / _info->fmt.samplerate * AV_TIME_BASE;
trace ("ffmpeg: seek to sample: %d, t: %d\n", sample, (int)tm);
info->left_in_packet = 0;
info->left_in_buffer = 0;
if (av_seek_frame (info->format_context, -1, tm, AVSEEK_FLAG_ANY) < 0) {
trace ("ffmpeg: seek error\n");
return -1;
}
// update readpos
info->currentsample = sample;
_info->readpos = (float)(sample - info->startsample) / _info->fmt.samplerate;
return 0;
}
static int
ffmpeg_seek_sample (DB_fileinfo_t *_info, int sample) {
return ffmpeg_seek_sample64(_info, sample);
}
static int
ffmpeg_seek (DB_fileinfo_t *_info, float time) {
return ffmpeg_seek_sample64 (_info, (int64_t)((double)time * (int64_t)_info->fmt.samplerate));
}
static const char *map[] = {
"artist", "artist",
"title", "title",
"album", "album",
"track", "track",
"tracktotal", "numtracks",
"date", "year",
"WM/Year", "year",
"genre", "genre",
"comment", "comment",
"performer", "performer",
"album_artist", "band",
"composer", "composer",
"encoder", "encoder",
"encoded_by", "vendor",
"disc", "disc",
"disctotal", "numdiscs",
"copyright", "copyright",
"publisher", "publisher",
"originaldate","original_release_time",
"originalyear","original_release_year",
"WM/OriginalReleaseTime","original_release_time",
"WM/OriginalReleaseYear","original_release_year",
NULL
};
static int
ff_add_disc_meta (DB_playItem_t *it, const char *disc) {
char *slash = strchr (disc, '/');
if (slash) {
// split into disc/number
*slash = 0;
slash++;
deadbeef->pl_add_meta (it, "numdiscs", slash);
}
deadbeef->pl_add_meta (it, "disc", disc);
return 0;
}
static int
ff_add_track_meta (DB_playItem_t *it, const char *track) {
char *slash = strchr (track, '/');
if (slash) {
// split into track/number
*slash = 0;
slash++;
deadbeef->pl_add_meta (it, "numtracks", slash);
}
deadbeef->pl_add_meta (it, "track", track);
return 0;
}
static int
ffmpeg_read_metadata_internal (DB_playItem_t *it, AVFormatContext *fctx) {
AVDictionaryEntry *t = NULL;
int m;
for (int i = 0; i < fctx->nb_streams + 1; i++) {
AVDictionary *md = i == 0 ? fctx->metadata : fctx->streams[i-1]->metadata;
if (!md) {
continue;
}
while ((t = av_dict_get (md, "", t, AV_DICT_IGNORE_SUFFIX))) {
if (!strcasecmp (t->key, "replaygain_album_gain")) {
deadbeef->pl_set_item_replaygain (it, DDB_REPLAYGAIN_ALBUMGAIN, atof (t->value));
continue;
}
else if (!strcasecmp (t->key, "replaygain_album_peak")) {
deadbeef->pl_set_item_replaygain (it, DDB_REPLAYGAIN_ALBUMPEAK, atof (t->value));
continue;
}
else if (!strcasecmp (t->key, "replaygain_track_gain")) {
deadbeef->pl_set_item_replaygain (it, DDB_REPLAYGAIN_TRACKGAIN, atof (t->value));
continue;
}
else if (!strcasecmp (t->key, "replaygain_track_peak")) {
deadbeef->pl_set_item_replaygain (it, DDB_REPLAYGAIN_TRACKPEAK, atof (t->value));
continue;
}
for (m = 0; map[m]; m += 2) {
if (!strcasecmp (t->key, map[m])) {
if (!strcmp (map[m+1], "disc")) {
ff_add_disc_meta (it, t->value);
}
else if (!strcmp (map[m+1], "track")) {
ff_add_track_meta (it, t->value);
}
else {
deadbeef->pl_append_meta (it, map[m+1], t->value);
}
break;
}
}
if (!map[m]) {
deadbeef->pl_append_meta (it, t->key, t->value);
}
}
}
return 0;
}
static void
print_error(const char *filename, int err)
{
char errbuf[128];
const char *errbuf_ptr = errbuf;
if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
errbuf_ptr = strerror(AVUNERROR(err));
fprintf (stderr, "%s: %s\n", filename, errbuf_ptr);
}
static DB_playItem_t *
ffmpeg_insert (ddb_playlist_t *plt, DB_playItem_t *after, const char *fname) {
trace ("ffmpeg_insert %s\n", fname);
// read information from the track
// load/process cuesheet if exists
// insert track into playlist
// return track pointer on success
// return NULL on failure
ffmpeg_info_t info = {0};
int ret;
char *uri = NULL;
int i;
// construct uri
uri = strdupa (fname);
trace ("ffmpeg: uri: %s\n", uri);
// open file
info.format_context = avformat_alloc_context ();
info.format_context->max_analyze_duration = AV_TIME_BASE;
if ((ret = avformat_open_input(&info.format_context, uri, NULL, NULL)) < 0) {
print_error (uri, ret);
goto error;
}
trace ("fctx is %p, ret %d/%s\n", info.format_context, ret, strerror(-ret));
ret = avformat_find_stream_info(info.format_context, NULL);
if (ret < 0) {
trace ("avformat_find_stream_info ret: %d/%s\n", ret, strerror(-ret));
}
trace ("nb_streams=%x\n", nb_streams);
for (i = 0; i < info.format_context->nb_streams; i++)
{
if (!info.format_context->streams[i]) {
continue;
}
if (_get_audio_codec_from_stream(info.format_context, i, &info)) {
break;
}
}
if (info.codec == NULL)
{
trace ("ffmpeg can't decode %s\n", fname);
goto error;
}
trace ("ffmpeg can decode %s\n", fname);
trace ("ffmpeg: codec=%s, stream=%d\n", codec->name, i);
int avcodec_open2_ret = avcodec_open2 (info.codec_context, info.codec, NULL);
if (avcodec_open2_ret < 0) {
trace ("ffmpeg: avcodec_open2 failed\n");
goto error;
}
int bps = av_get_bytes_per_sample (info.codec_context->sample_fmt) * 8;
int samplerate = info.codec_context->sample_rate;
float duration = info.format_context->duration / (float)AV_TIME_BASE;
// float duration = stream->duration * stream->time_base.num / (float)stream->time_base.den;
trace ("ffmpeg: bits per sample is %d\n", bps);
trace ("ffmpeg: samplerate is %d\n", samplerate);
trace ("ffmpeg: duration is %f\n", duration);
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 0, 0)
if (bps <= 0 || info.codec_context->ch_layout.nb_channels <= 0 || samplerate <= 0) {
#else
if (bps <= 0 || info.codec_context->channels <= 0 || samplerate <= 0) {
#endif
goto error;
}
int64_t totalsamples = info.format_context->duration * samplerate / AV_TIME_BASE;
DB_playItem_t *it = deadbeef->pl_item_alloc_init (fname, plugin.decoder.plugin.id);
deadbeef->pl_replace_meta (it, ":FILETYPE", info.codec->name);
if (!deadbeef->is_local_file (fname)) {
deadbeef->plt_set_item_duration (plt, it, -1);
}
else {
deadbeef->plt_set_item_duration (plt, it, duration);
}
// add metainfo
ffmpeg_read_metadata_internal (it, info.format_context);
int64_t fsize = -1;
DB_FILE *fp = deadbeef->fopen (fname);
if (fp) {
if (!fp->vfs->is_streaming ()) {
fsize = deadbeef->fgetlength (fp);
}
deadbeef->fclose (fp);
}
if (fsize >= 0 && duration > 0) {
char s[100];
snprintf (s, sizeof (s), "%lld", (long long)fsize);
deadbeef->pl_add_meta (it, ":FILE_SIZE", s);
snprintf (s, sizeof (s), "%d", bps);
deadbeef->pl_add_meta (it, ":BPS", s);
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 0, 0)
snprintf (s, sizeof (s), "%d", info.codec_context->ch_layout.nb_channels);
#else
snprintf (s, sizeof (s), "%d", info.codec_context->channels);
#endif
deadbeef->pl_add_meta (it, ":CHANNELS", s);
if (is_codec_dsd(info.codec_context->codec_id)) {
snprintf (s, sizeof (s), "%d", samplerate * 8);
}
else {
snprintf (s, sizeof (s), "%d", samplerate);
}
deadbeef->pl_add_meta (it, ":SAMPLERATE", s);
int br = (int)roundf(fsize / duration * 8 / 1000);
snprintf (s, sizeof (s), "%d", br);
deadbeef->pl_add_meta (it, ":BITRATE", s);
}
// free decoder
_free_info_data (&info);
DB_playItem_t *cue = deadbeef->plt_process_cue (plt, after, it, totalsamples, samplerate);
if (cue) {
deadbeef->pl_item_unref (it);
return cue;
}
// now the track is ready, insert into playlist
after = deadbeef->plt_insert_item (plt, after, it);
deadbeef->pl_item_unref (it);
return after;
error:
_free_info_data (&info);
return NULL;
}
static int
assign_new_ext (int n, const char* new_ext, size_t size) {
char* ext = malloc (size + 1);
strncpy (ext, new_ext, size);
for (int i = 0; i < n; i++) {
if (strcmp (exts[i], ext) == 0) {
free(ext);
return n;
}
}
ext[size] = '\0';
free (exts[n]);
exts[n] = ext;
return n + 1;
}
static int
add_new_exts (int n, const char* new_exts, char delim) {
while (*new_exts) {
if (n >= EXT_MAX) {
fprintf (stderr, "ffmpeg: too many extensions, max is %d\n", EXT_MAX);
break;
}
const char *e = new_exts;
while (*e && (*e != delim || *e == ' ')) {
e++;
}
if (e != new_exts) {
n = assign_new_ext (n, new_exts, e-new_exts);
}
if (*e == 0) {
break;
}
new_exts = e+1;
}
return n;
}
static void
ffmpeg_init_exts (void) {
const char *new_exts = deadbeef->conf_get_str_fast ("ffmpeg.extensions", DEFAULT_EXTS);
int use_all_ext = deadbeef->conf_get_int ("ffmpeg.enable_all_exts", 0);
for (int i = 0; exts[i]; i++) {
free (exts[i]);
exts[i] = NULL;
}
exts[0] = NULL;
int n = 0;
if (!use_all_ext) {
n = add_new_exts (n, new_exts, ';');
}
else {
const AVInputFormat *ifmt = NULL;
/*
* It's quite complicated to enumerate all supported extensions in
* ffmpeg. If a decoder defines extensions in ffmpeg, the probing
* mechanisim is disabled (see comments in avformat.h).
* Thus some decoders doesn't claim its extensions (e.g. WavPack)
*
* To get these missing extensions, we need to search corresponding
* encoders for the same format, which will provide extensions for
* encoding purpose, because ffmpeg will guess the output format from
* the file name specified by users.
*/
#if LIBAVFORMAT_VERSION_MAJOR >= 59
void *iter = NULL;
while ((ifmt = av_demuxer_iterate(&iter))) {
#else
while ((ifmt = av_iformat_next(ifmt))) {
#endif
#ifdef AV_IS_INPUT_DEVICE
if (ifmt->priv_class && AV_IS_INPUT_DEVICE(ifmt->priv_class->category))
continue; // Skip all input devices
#endif
if (ifmt->flags & AVFMT_NOFILE)
continue; // Skip format that's not even a file
#ifdef AV_CODEC_ID_FIRST_AUDIO
if (ifmt->raw_codec_id > 0 &&
(ifmt->raw_codec_id < AV_CODEC_ID_FIRST_AUDIO || ifmt->raw_codec_id > AV_CODEC_ID_FIRST_SUBTITLE)
)
continue; // Skip all non-audio raw formats
#endif
if (ifmt->long_name && strstr(ifmt->long_name, "subtitle"))
continue; // Skip all subtitle formats
if (ifmt->extensions)
n = add_new_exts (n, ifmt->extensions, ',');
}
/*
* The above code doesn't guarntee all extensions are
* included, however. In the portable build the encoders are disabled,
* thus some extensions cannot be retrived.
*
* To fix this, we need to add some known extensions in addition to
* scanned extensions.
*/
n = add_new_exts (n, UNPOPULATED_EXTS_BY_FFMPEG, ',');
}
exts[n] = NULL;
}
static void
_init_from_config(void) {
deadbeef->conf_lock ();
ffmpeg_init_exts ();
enable_dop = deadbeef->conf_get_int ("ffmpeg.enable_dop", 0);
deadbeef->conf_unlock ();
}
static int