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-rw-r--r--src/decoder/mp4_plugin.c420
1 files changed, 0 insertions, 420 deletions
diff --git a/src/decoder/mp4_plugin.c b/src/decoder/mp4_plugin.c
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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,
-};
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