diff options
Diffstat (limited to 'src/decoder/mp4_plugin.c')
-rw-r--r-- | src/decoder/mp4_plugin.c | 420 |
1 files changed, 0 insertions, 420 deletions
diff --git a/src/decoder/mp4_plugin.c b/src/decoder/mp4_plugin.c deleted file mode 100644 index a85e8a710..000000000 --- a/src/decoder/mp4_plugin.c +++ /dev/null @@ -1,420 +0,0 @@ -/* the Music Player Daemon (MPD) - * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) - * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include "../decoder_api.h" -#include "config.h" - -#include "mp4ff.h" - -#include <limits.h> -#include <faad.h> -#include <glib.h> -#include <stdlib.h> -#include <unistd.h> - -/* all code here is either based on or copied from FAAD2's frontend code */ - -struct mp4_context { - struct decoder *decoder; - struct input_stream *input_stream; -}; - -static int -mp4_get_aac_track(mp4ff_t * infile) -{ - /* find AAC track */ - int i, rc; - int num_tracks = mp4ff_total_tracks(infile); - - for (i = 0; i < num_tracks; i++) { - unsigned char *buff = NULL; - unsigned int buff_size = 0; -#ifdef HAVE_MP4AUDIOSPECIFICCONFIG - mp4AudioSpecificConfig mp4ASC; -#else - unsigned long dummy1_32; - unsigned char dummy2_8, dummy3_8, dummy4_8, dummy5_8, dummy6_8, - dummy7_8, dummy8_8; -#endif - - mp4ff_get_decoder_config(infile, i, &buff, &buff_size); - - if (buff) { -#ifdef HAVE_MP4AUDIOSPECIFICCONFIG - rc = AudioSpecificConfig(buff, buff_size, &mp4ASC); -#else - rc = AudioSpecificConfig(buff, &dummy1_32, &dummy2_8, - &dummy3_8, &dummy4_8, - &dummy5_8, &dummy6_8, - &dummy7_8, &dummy8_8); -#endif - free(buff); - if (rc < 0) - continue; - return i; - } - } - - /* can't decode this */ - return -1; -} - -static uint32_t -mp4_read(void *user_data, void *buffer, uint32_t length) -{ - struct mp4_context *ctx = user_data; - - return decoder_read(ctx->decoder, ctx->input_stream, buffer, length); -} - -static uint32_t -mp4_seek(void *user_data, uint64_t position) -{ - struct mp4_context *ctx = user_data; - - return input_stream_seek(ctx->input_stream, position, SEEK_SET) - ? 0 : -1; -} - -static void -mp4_decode(struct decoder *mpd_decoder, struct input_stream *input_stream) -{ - struct mp4_context ctx = { - .decoder = mpd_decoder, - .input_stream = input_stream, - }; - mp4ff_callback_t callback = { - .read = mp4_read, - .seek = mp4_seek, - .user_data = &ctx, - }; - mp4ff_t *mp4fh; - int32_t track; - float file_time, total_time; - int32_t scale; - faacDecHandle decoder; - faacDecFrameInfo frame_info; - faacDecConfigurationPtr config; - unsigned char *mp4_buffer; - unsigned int mp4_buffer_size; - uint32_t sample_rate; -#ifdef HAVE_FAAD_LONG - /* neaacdec.h declares all arguments as "unsigned long", but - internally expects uint32_t pointers. To avoid gcc - warnings, use this workaround. */ - unsigned long *sample_rate_r = (unsigned long*)&sample_rate; -#else - uint32_t *sample_rate_r = &sample_rate; -#endif - unsigned char channels; - long sample_id; - long num_samples; - long dur; - unsigned int sample_count; - char *sample_buffer; - size_t sample_buffer_length; - unsigned int initial = 1; - float *seek_table; - long seek_table_end = -1; - bool seek_position_found = false; - long offset; - uint16_t bit_rate = 0; - bool seeking = false; - double seek_where = 0; - bool initialized = false; - enum decoder_command cmd = DECODE_COMMAND_NONE; - - mp4fh = mp4ff_open_read(&callback); - if (!mp4fh) { - g_warning("Input does not appear to be a mp4 stream.\n"); - return; - } - - track = mp4_get_aac_track(mp4fh); - if (track < 0) { - g_warning("No AAC track found in mp4 stream.\n"); - mp4ff_close(mp4fh); - return; - } - - decoder = faacDecOpen(); - - config = faacDecGetCurrentConfiguration(decoder); - config->outputFormat = FAAD_FMT_16BIT; -#ifdef HAVE_FAACDECCONFIGURATION_DOWNMATRIX - config->downMatrix = 1; -#endif -#ifdef HAVE_FAACDECCONFIGURATION_DONTUPSAMPLEIMPLICITSBR - config->dontUpSampleImplicitSBR = 0; -#endif - faacDecSetConfiguration(decoder, config); - - mp4_buffer = NULL; - mp4_buffer_size = 0; - mp4ff_get_decoder_config(mp4fh, track, &mp4_buffer, &mp4_buffer_size); - - if (faacDecInit2(decoder, mp4_buffer, mp4_buffer_size, - sample_rate_r, &channels) < 0) { - g_warning("Not an AAC stream.\n"); - faacDecClose(decoder); - mp4ff_close(mp4fh); - return; - } - - file_time = mp4ff_get_track_duration_use_offsets(mp4fh, track); - scale = mp4ff_time_scale(mp4fh, track); - - free(mp4_buffer); - - if (scale < 0) { - g_warning("Error getting audio format of mp4 AAC track.\n"); - faacDecClose(decoder); - mp4ff_close(mp4fh); - return; - } - total_time = ((float)file_time) / scale; - - num_samples = mp4ff_num_samples(mp4fh, track); - if (num_samples > (long)(INT_MAX / sizeof(float))) { - g_warning("Integer overflow.\n"); - faacDecClose(decoder); - mp4ff_close(mp4fh); - return; - } - - file_time = 0.0; - - seek_table = g_malloc(sizeof(float) * num_samples); - - for (sample_id = 0; - sample_id < num_samples && cmd != DECODE_COMMAND_STOP; - sample_id++) { - if (cmd == DECODE_COMMAND_SEEK) { - seeking = true; - seek_where = decoder_seek_where(mpd_decoder); - } - - if (seeking && seek_table_end > 1 && - seek_table[seek_table_end] >= seek_where) { - int i = 2; - while (seek_table[i] < seek_where) - i++; - sample_id = i - 1; - file_time = seek_table[sample_id]; - } - - dur = mp4ff_get_sample_duration(mp4fh, track, sample_id); - offset = mp4ff_get_sample_offset(mp4fh, track, sample_id); - - if (sample_id > seek_table_end) { - seek_table[sample_id] = file_time; - seek_table_end = sample_id; - } - - if (sample_id == 0) - dur = 0; - if (offset > dur) - dur = 0; - else - dur -= offset; - file_time += ((float)dur) / scale; - - if (seeking && file_time > seek_where) - seek_position_found = true; - - if (seeking && seek_position_found) { - seek_position_found = false; - seeking = 0; - decoder_command_finished(mpd_decoder); - } - - if (seeking) - continue; - - if (mp4ff_read_sample(mp4fh, track, sample_id, &mp4_buffer, - &mp4_buffer_size) == 0) - break; - -#ifdef HAVE_FAAD_BUFLEN_FUNCS - sample_buffer = faacDecDecode(decoder, &frame_info, mp4_buffer, - mp4_buffer_size); -#else - sample_buffer = faacDecDecode(decoder, &frame_info, mp4_buffer); -#endif - - if (mp4_buffer) - free(mp4_buffer); - if (frame_info.error > 0) { - g_warning("faad2 error: %s\n", - faacDecGetErrorMessage(frame_info.error)); - break; - } - - if (!initialized) { - struct audio_format audio_format = { - .bits = 16, - .channels = frame_info.channels, - }; - - channels = frame_info.channels; -#ifdef HAVE_FAACDECFRAMEINFO_SAMPLERATE - scale = frame_info.samplerate; -#endif - audio_format.sample_rate = scale; - - if (!audio_format_valid(&audio_format)) { - g_warning("Invalid audio format: %u:%u:%u\n", - audio_format.sample_rate, - audio_format.bits, - audio_format.channels); - break; - } - - decoder_initialized(mpd_decoder, &audio_format, - input_stream->seekable, - total_time); - initialized = true; - } - - if (channels * (unsigned long)(dur + offset) > frame_info.samples) { - dur = frame_info.samples / channels; - offset = 0; - } - - sample_count = (unsigned long)(dur * channels); - - if (sample_count > 0) { - initial = 0; - bit_rate = frame_info.bytesconsumed * 8.0 * - frame_info.channels * scale / - frame_info.samples / 1000 + 0.5; - } - - sample_buffer_length = sample_count * 2; - - sample_buffer += offset * channels * 2; - - cmd = decoder_data(mpd_decoder, input_stream, - sample_buffer, sample_buffer_length, - file_time, bit_rate, NULL); - } - - g_free(seek_table); - faacDecClose(decoder); - mp4ff_close(mp4fh); -} - -static struct tag * -mp4_load_tag(const char *file) -{ - struct tag *ret = NULL; - struct input_stream input_stream; - struct mp4_context ctx = { - .decoder = NULL, - .input_stream = &input_stream, - }; - mp4ff_callback_t callback = { - .read = mp4_read, - .seek = mp4_seek, - .user_data = &ctx, - }; - mp4ff_t *mp4fh; - int32_t track; - int32_t file_time; - int32_t scale; - int i; - - if (!input_stream_open(&input_stream, file)) { - g_warning("mp4_load_tag: Failed to open file: %s\n", file); - return NULL; - } - - mp4fh = mp4ff_open_read(&callback); - if (!mp4fh) { - input_stream_close(&input_stream); - return NULL; - } - - track = mp4_get_aac_track(mp4fh); - if (track < 0) { - mp4ff_close(mp4fh); - input_stream_close(&input_stream); - return NULL; - } - - ret = tag_new(); - file_time = mp4ff_get_track_duration_use_offsets(mp4fh, track); - scale = mp4ff_time_scale(mp4fh, track); - if (scale < 0) { - mp4ff_close(mp4fh); - input_stream_close(&input_stream); - tag_free(ret); - return NULL; - } - ret->time = ((float)file_time) / scale + 0.5; - - for (i = 0; i < mp4ff_meta_get_num_items(mp4fh); i++) { - char *item; - char *value; - - mp4ff_meta_get_by_index(mp4fh, i, &item, &value); - - if (0 == strcasecmp("artist", item)) { - tag_add_item(ret, TAG_ITEM_ARTIST, value); - } else if (0 == strcasecmp("title", item)) { - tag_add_item(ret, TAG_ITEM_TITLE, value); - } else if (0 == strcasecmp("album", item)) { - tag_add_item(ret, TAG_ITEM_ALBUM, value); - } else if (0 == strcasecmp("track", item)) { - tag_add_item(ret, TAG_ITEM_TRACK, value); - } else if (0 == strcasecmp("disc", item)) { /* Is that the correct id? */ - tag_add_item(ret, TAG_ITEM_DISC, value); - } else if (0 == strcasecmp("genre", item)) { - tag_add_item(ret, TAG_ITEM_GENRE, value); - } else if (0 == strcasecmp("date", item)) { - tag_add_item(ret, TAG_ITEM_DATE, value); - } else if (0 == strcasecmp("writer", item)) { - tag_add_item(ret, TAG_ITEM_COMPOSER, value); - } - - free(item); - free(value); - } - - mp4ff_close(mp4fh); - input_stream_close(&input_stream); - - return ret; -} - -static struct tag * -mp4_tag_dup(const char *file) -{ - return mp4_load_tag(file); -} - -static const char *const mp4_suffixes[] = { "m4a", "mp4", NULL }; -static const char *const mp4_mime_types[] = { "audio/mp4", "audio/m4a", NULL }; - -const struct decoder_plugin mp4_plugin = { - .name = "mp4", - .stream_decode = mp4_decode, - .tag_dup = mp4_tag_dup, - .suffixes = mp4_suffixes, - .mime_types = mp4_mime_types, -}; |