diff options
Diffstat (limited to 'src/libfaad/xine_faad_decoder.c')
| -rw-r--r-- | src/libfaad/xine_faad_decoder.c | 517 |
1 files changed, 0 insertions, 517 deletions
diff --git a/src/libfaad/xine_faad_decoder.c b/src/libfaad/xine_faad_decoder.c deleted file mode 100644 index 86dc7d6d3..000000000 --- a/src/libfaad/xine_faad_decoder.c +++ /dev/null @@ -1,517 +0,0 @@ -/* - * Copyright (C) 2000-2005 the xine project - * - * This file is part of xine, a free video player. - * - * xine 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. - * - * xine 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, USA - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> - -#define LOG_MODULE "libfaad" -#define LOG_VERBOSE -/* -#define LOG -*/ - -#include "xine_internal.h" -#include "audio_out.h" -#include "buffer.h" -#include "xineutils.h" -#ifdef HAVE_FAAD_H -#include <faad.h> -#else -#include "common.h" -#include "structs.h" -#include "decoder.h" -#include "syntax.h" -#endif - -#define FAAD_MIN_STREAMSIZE 768 /* 6144 bits/channel */ - -typedef struct { - audio_decoder_class_t decoder_class; -} faad_class_t; - -typedef struct faad_decoder_s { - audio_decoder_t audio_decoder; - - xine_stream_t *stream; - - /* faad2 stuff */ - NeAACDecHandle faac_dec; - NeAACDecConfigurationPtr faac_cfg; - NeAACDecFrameInfo faac_finfo; - int faac_failed; - - int raw_mode; - - unsigned char *buf; - int size; - int rec_audio_src_size; - int max_audio_src_size; - int64_t pts; - - unsigned char *dec_config; - int dec_config_size; - - uint32_t rate; - int bits_per_sample; - unsigned char num_channels; - int sbr; - uint32_t ao_cap_mode; - - int output_open; - - unsigned long total_time; - unsigned long total_data; -} faad_decoder_t; - - -static void faad_reset (audio_decoder_t *this_gen) { - - faad_decoder_t *this = (faad_decoder_t *) this_gen; - this->size = 0; -} - -static void faad_meta_info_set ( faad_decoder_t *this ) { - switch (this->num_channels) { - case 1: - if (this->faac_finfo.sbr == SBR_UPSAMPLED) - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, - "HE-AAC 1.0 (libfaad)"); - else - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, - "AAC 1.0 (libfaad)"); - break; - case 2: - /* check if this is downmixed 5.1 */ - if (!this->faac_cfg || !this->faac_cfg->downMatrix) { - if (this->faac_finfo.sbr == SBR_UPSAMPLED) - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, - "HE-AAC 2.0 (libfaad)"); - else - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, - "AAC 2.0 (libfaad)"); - break; - } - case 6: - if (this->faac_finfo.sbr == SBR_UPSAMPLED) - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, - "HE-AAC 5.1 (libfaad)"); - else - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, - "AAC 5.1 (libfaad)"); - break; - } -} - -static int faad_open_dec( faad_decoder_t *this ) { - int used; - - this->faac_dec = NeAACDecOpen(); - if( !this->faac_dec ) { - xprintf( this->stream->xine, XINE_VERBOSITY_LOG, - _("libfaad: libfaad NeAACDecOpen() failed.\n")); - this->faac_failed++; - } else { - if( this->dec_config ) { - used = NeAACDecInit2(this->faac_dec, this->dec_config, this->dec_config_size, - &this->rate, &this->num_channels); - - if( used < 0 ) { - xprintf( this->stream->xine, XINE_VERBOSITY_LOG, - _("libfaad: libfaad NeAACDecInit2 failed.\n")); - this->faac_failed++; - } else - lprintf( "NeAACDecInit2 returned rate=%"PRId32" channels=%d\n", - this->rate, this->num_channels ); - } else { - used = NeAACDecInit(this->faac_dec, this->buf, this->size, - &this->rate, &this->num_channels); - - if( used < 0 ) { - xprintf ( this->stream->xine, XINE_VERBOSITY_LOG, - _("libfaad: libfaad NeAACDecInit failed.\n")); - this->faac_failed++; - } else { - lprintf( "NeAACDecInit() returned rate=%"PRId32" channels=%d (used=%d)\n", - this->rate, this->num_channels, used); - - this->size -= used; - memmove( this->buf, &this->buf[used], this->size ); - } - } - } - - if( !this->bits_per_sample ) - this->bits_per_sample = 16; - - if( this->faac_failed ) { - if( this->faac_dec ) { - NeAACDecClose( this->faac_dec ); - this->faac_dec = NULL; - } - _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_HANDLED, 0); - } else { - faad_meta_info_set(this); - } - - return this->faac_failed; -} - -static int faad_open_output( faad_decoder_t *this ) { - this->rec_audio_src_size = this->num_channels * FAAD_MIN_STREAMSIZE; - - switch( this->num_channels ) { - case 1: - this->ao_cap_mode=AO_CAP_MODE_MONO; - break; - case 6: - if(this->stream->audio_out->get_capabilities(this->stream->audio_out) & - AO_CAP_MODE_5_1CHANNEL) { - this->ao_cap_mode = AO_CAP_MODE_5_1CHANNEL; - break; - } else { - this->faac_cfg = NeAACDecGetCurrentConfiguration(this->faac_dec); - this->faac_cfg->downMatrix = 1; - NeAACDecSetConfiguration(this->faac_dec, this->faac_cfg); - this->num_channels = 2; - } - case 2: - this->ao_cap_mode=AO_CAP_MODE_STEREO; - break; - default: - return 0; - } - - this->output_open = (this->stream->audio_out->open) (this->stream->audio_out, - this->stream, - this->bits_per_sample, - this->rate, - this->ao_cap_mode) ; - return this->output_open; -} - -static void faad_decode_audio ( faad_decoder_t *this, int end_frame ) { - int used, decoded, outsize; - uint8_t *sample_buffer; - uint8_t *inbuf; - audio_buffer_t *audio_buffer; - int sample_size = this->size; - - if( !this->faac_dec ) - return; - - inbuf = this->buf; - while( (!this->raw_mode && end_frame && this->size >= 10) || - (this->raw_mode && this->size >= this->rec_audio_src_size) ) { - - sample_buffer = NeAACDecDecode(this->faac_dec, - &this->faac_finfo, inbuf, sample_size); - - if( !sample_buffer ) { - xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, - "libfaad: %s\n", NeAACDecGetErrorMessage(this->faac_finfo.error)); - used = 1; - } else { - used = this->faac_finfo.bytesconsumed; - - /* raw AAC parameters might only be known after decoding the first frame */ - if( !this->dec_config && - (this->num_channels != this->faac_finfo.channels || - this->rate != this->faac_finfo.samplerate) ) { - - this->num_channels = this->faac_finfo.channels; - this->rate = this->faac_finfo.samplerate; - - lprintf("faacDecDecode() returned rate=%"PRId32" channels=%d used=%d\n", - this->rate, this->num_channels, used); - - this->stream->audio_out->close (this->stream->audio_out, this->stream); - this->output_open = 0; - faad_open_output( this ); - - faad_meta_info_set( this ); - } - - /* faad doesn't tell us about sbr until after the first frame */ - if (this->sbr != this->faac_finfo.sbr) { - this->sbr = this->faac_finfo.sbr; - faad_meta_info_set( this ); - } - - /* estimate bitrate */ - this->total_time += (1000*this->faac_finfo.samples/(this->rate*this->num_channels)); - this->total_data += 8*used; - - if ((this->total_time > LONG_MAX) || (this->total_data > LONG_MAX)) { - this->total_time >>= 2; - this->total_data >>= 2; - } - - if (this->total_time) - _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_BITRATE, - 1000*(this->total_data/this->total_time)); - - decoded = this->faac_finfo.samples * 2; /* 1 sample = 2 bytes */ - - lprintf("decoded %d/%d output %ld\n", - used, this->size, this->faac_finfo.samples ); - - /* Performing necessary channel reordering because aac uses a different - * layout than alsa: - * - * aac 5.1 channel layout: c l r ls rs lfe - * alsa 5.1 channel layout: l r ls rs c lfe - * - * Reordering is only necessary for 5.0 and above. Currently only 5.0 - * and 5.1 is being taken care of, the rest will stay in the wrong order - * for now. - * - * WARNING: the following needs a output format of 16 bits per sample. - * TODO: - reorder while copying (in the while() loop) and optimizing - */ - if(this->num_channels == 5 || this->num_channels == 6) - { - int i = 0; - uint16_t* buf = (uint16_t*)(sample_buffer); - - for(; i < this->faac_finfo.samples; i += this->num_channels) { - uint16_t center = buf[i]; - *((uint64_t*)(buf + i)) = *((uint64_t*)(buf + i + 1)); - buf[i + 4] = center; - } - } - - while( decoded ) { - audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out); - - if( decoded < audio_buffer->mem_size ) - outsize = decoded; - else - outsize = audio_buffer->mem_size; - - xine_fast_memcpy( audio_buffer->mem, sample_buffer, outsize ); - - audio_buffer->num_frames = outsize / (this->num_channels*2); - audio_buffer->vpts = this->pts; - - this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream); - - this->pts = 0; - decoded -= outsize; - sample_buffer += outsize; - } - } - - if(used >= this->size){ - this->size = 0; - } else { - this->size -= used; - inbuf += used; - } - - if( !this->raw_mode ) - this->size = 0; - } - - if( this->size ) - memmove( this->buf, inbuf, this->size); - -} - -static void faad_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) { - - faad_decoder_t *this = (faad_decoder_t *) this_gen; - - if (buf->decoder_flags & BUF_FLAG_PREVIEW) - return; - - /* store config information from ESDS mp4/qt atom */ - if( !this->faac_dec && (buf->decoder_flags & BUF_FLAG_SPECIAL) && - buf->decoder_info[1] == BUF_SPECIAL_DECODER_CONFIG ) { - - this->dec_config = malloc(buf->decoder_info[2]); - this->dec_config_size = buf->decoder_info[2]; - memcpy(this->dec_config, buf->decoder_info_ptr[2], buf->decoder_info[2]); - - if( faad_open_dec(this) ) - return; - - this->raw_mode = 0; - } - - /* get audio parameters from file header - (may be overwritten by libfaad returned parameters) */ - if (buf->decoder_flags & BUF_FLAG_STDHEADER) { - this->rate=buf->decoder_info[1]; - this->bits_per_sample=buf->decoder_info[2] ; - this->num_channels=buf->decoder_info[3] ; - - if( buf->size > sizeof(xine_waveformatex) ) { - xine_waveformatex *wavex = (xine_waveformatex *) buf->content; - - if( wavex->cbSize > 0 ) { - this->dec_config = malloc(wavex->cbSize); - this->dec_config_size = wavex->cbSize; - memcpy(this->dec_config, buf->content + sizeof(xine_waveformatex), - wavex->cbSize); - - if( faad_open_dec(this) ) - return; - - this->raw_mode = 0; - } - } - } else { - - lprintf ("decoding %d data bytes...\n", buf->size); - - if( (int)buf->size <= 0 || this->faac_failed ) - return; - - if( !this->size ) - this->pts = buf->pts; - - if( this->size + buf->size > this->max_audio_src_size ) { - this->max_audio_src_size = this->size + 2 * buf->size; - this->buf = realloc( this->buf, this->max_audio_src_size ); - } - - memcpy (&this->buf[this->size], buf->content, buf->size); - this->size += buf->size; - - if( !this->faac_dec && faad_open_dec(this) ) - return; - - /* open audio device as needed */ - if (!this->output_open) { - faad_open_output( this ); - } - - faad_decode_audio(this, buf->decoder_flags & BUF_FLAG_FRAME_END ); - } -} - -static void faad_discontinuity (audio_decoder_t *this_gen) { -} - -static void faad_dispose (audio_decoder_t *this_gen) { - - faad_decoder_t *this = (faad_decoder_t *) this_gen; - - if (this->output_open) - this->stream->audio_out->close (this->stream->audio_out, this->stream); - this->output_open = 0; - - if( this->buf ) - free(this->buf); - this->buf = NULL; - this->size = 0; - this->max_audio_src_size = 0; - - if( this->dec_config ) - free(this->dec_config); - this->dec_config = NULL; - this->dec_config_size = 0; - - if( this->faac_dec ) - NeAACDecClose(this->faac_dec); - this->faac_dec = NULL; - this->faac_failed = 0; - - free (this); -} - - -static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream) { - - faad_decoder_t *this ; - - this = calloc(1, sizeof (faad_decoder_t)); - - this->audio_decoder.decode_data = faad_decode_data; - this->audio_decoder.reset = faad_reset; - this->audio_decoder.discontinuity = faad_discontinuity; - this->audio_decoder.dispose = faad_dispose; - - this->stream = stream; - this->output_open = 0; - this->raw_mode = 1; - this->faac_dec = NULL; - this->faac_failed = 0; - this->buf = NULL; - this->size = 0; - this->max_audio_src_size = 0; - this->dec_config = NULL; - this->dec_config_size = 0; - this->total_time = 0; - this->total_data = 0; - - this->rate = 0; - - return &this->audio_decoder; -} - -static char *get_identifier (audio_decoder_class_t *this) { - return "FAAD"; -} - -static char *get_description (audio_decoder_class_t *this) { - return "Freeware Advanced Audio Decoder"; -} - -static void dispose_class (audio_decoder_class_t *this) { - free (this); -} - -static void *init_plugin (xine_t *xine, void *data) { - - faad_class_t *this ; - - this = calloc(1, sizeof (faad_class_t)); - - this->decoder_class.open_plugin = open_plugin; - this->decoder_class.get_identifier = get_identifier; - this->decoder_class.get_description = get_description; - this->decoder_class.dispose = dispose_class; - - return this; -} - -static uint32_t audio_types[] = { - BUF_AUDIO_AAC, 0 - }; - -static const decoder_info_t dec_info_audio = { - audio_types, /* supported types */ - 1 /* priority */ -}; - -const plugin_info_t xine_plugin_info[] EXPORTED = { - /* type, API, "name", version, special_info, init_function */ - { PLUGIN_AUDIO_DECODER, 15, "faad", XINE_VERSION_CODE, &dec_info_audio, init_plugin }, - { PLUGIN_NONE, 0, "", 0, NULL, NULL } -}; |