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-rw-r--r--src/inputPlugins/mp4_plugin.c426
1 files changed, 426 insertions, 0 deletions
diff --git a/src/inputPlugins/mp4_plugin.c b/src/inputPlugins/mp4_plugin.c
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index 000000000..b34b3c421
--- /dev/null
+++ b/src/inputPlugins/mp4_plugin.c
@@ -0,0 +1,426 @@
+/* the Music Player Daemon (MPD)
+ * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
+ * 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 "../inputPlugin.h"
+
+#ifdef HAVE_FAAD
+
+#include "../utils.h"
+#include "../audio.h"
+#include "../log.h"
+#include "../pcm_utils.h"
+#include "../inputStream.h"
+#include "../outputBuffer.h"
+#include "../decode.h"
+
+#include "../mp4ff/mp4ff.h"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <faad.h>
+
+/* all code here is either based on or copied from FAAD2's frontend code */
+
+int mp4_getAACTrack(mp4ff_t *infile) {
+ /* find AAC track */
+ int i, rc;
+ int numTracks = mp4ff_total_tracks(infile);
+
+ for (i = 0; i < numTracks; i++) {
+ unsigned char *buff = NULL;
+ 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;
+}
+
+uint32_t mp4_inputStreamReadCallback(void *inStream, void *buffer,
+ uint32_t length)
+{
+ return readFromInputStream((InputStream*) inStream, buffer, 1, length);
+}
+
+uint32_t mp4_inputStreamSeekCallback(void *inStream, uint64_t position) {
+ return seekInputStream((InputStream *) inStream, position, SEEK_SET);
+}
+
+
+int mp4_decode(OutputBuffer * cb, DecoderControl * dc) {
+ mp4ff_t * mp4fh;
+ mp4ff_callback_t * mp4cb;
+ int32_t track;
+ float time;
+ int32_t scale;
+ faacDecHandle decoder;
+ faacDecFrameInfo frameInfo;
+ faacDecConfigurationPtr config;
+ unsigned char * mp4Buffer;
+ int mp4BufferSize;
+ unsigned long sampleRate;
+ unsigned char channels;
+ long sampleId;
+ long numSamples;
+ int eof = 0;
+ long dur;
+ unsigned int sampleCount;
+ char * sampleBuffer;
+ size_t sampleBufferLen;
+ unsigned int initial = 1;
+ float * seekTable;
+ long seekTableEnd = -1;
+ int seekPositionFound = 0;
+ long offset;
+ mpd_uint16 bitRate = 0;
+ InputStream inStream;
+
+ if(openInputStream(&inStream,dc->file) < 0) {
+ ERROR("failed to open %s\n",dc->file);
+ return -1;
+ }
+
+ mp4cb = malloc(sizeof(mp4ff_callback_t));
+ mp4cb->read = mp4_inputStreamReadCallback;
+ mp4cb->seek = mp4_inputStreamSeekCallback;
+ mp4cb->user_data = &inStream;
+
+ mp4fh = mp4ff_open_read(mp4cb);
+ if(!mp4fh) {
+ ERROR("Input does not appear to be a mp4 stream.\n");
+ free(mp4cb);
+ closeInputStream(&inStream);
+ return -1;
+ }
+
+ track = mp4_getAACTrack(mp4fh);
+ if(track < 0) {
+ ERROR("No AAC track found in mp4 stream.\n");
+ mp4ff_close(mp4fh);
+ closeInputStream(&inStream);
+ free(mp4cb);
+ return -1;
+ }
+
+ 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);
+
+ dc->audioFormat.bits = 16;
+
+ mp4Buffer = NULL;
+ mp4BufferSize = 0;
+ mp4ff_get_decoder_config(mp4fh,track,&mp4Buffer,&mp4BufferSize);
+
+ if(faacDecInit2(decoder,mp4Buffer,mp4BufferSize,&sampleRate,&channels)
+ < 0)
+ {
+ ERROR("Error not a AAC stream.\n");
+ faacDecClose(decoder);
+ mp4ff_close(mp4fh);
+ free(mp4cb);
+ closeInputStream(&inStream);
+ return -1;
+ }
+
+ dc->audioFormat.sampleRate = sampleRate;
+ dc->audioFormat.channels = channels;
+ time = mp4ff_get_track_duration_use_offsets(mp4fh,track);
+ scale = mp4ff_time_scale(mp4fh,track);
+
+ if(mp4Buffer) free(mp4Buffer);
+
+ if(scale < 0) {
+ ERROR("Error getting audio format of mp4 AAC track.\n");
+ faacDecClose(decoder);
+ mp4ff_close(mp4fh);
+ closeInputStream(&inStream);
+ free(mp4cb);
+ return -1;
+ }
+ dc->totalTime = ((float)time)/scale;
+
+ numSamples = mp4ff_num_samples(mp4fh,track);
+
+ time = 0.0;
+
+ seekTable = malloc(sizeof(float)*numSamples);
+
+ for(sampleId=0; sampleId<numSamples && !eof; sampleId++) {
+ if(dc->seek && seekTableEnd>1 &&
+ seekTable[seekTableEnd]>=dc->seekWhere)
+ {
+ int i = 2;
+ while(seekTable[i]<dc->seekWhere) i++;
+ sampleId = i-1;
+ time = seekTable[sampleId];
+ }
+
+ dur = mp4ff_get_sample_duration(mp4fh,track,sampleId);
+ offset = mp4ff_get_sample_offset(mp4fh,track,sampleId);
+
+ if(sampleId>seekTableEnd) {
+ seekTable[sampleId] = time;
+ seekTableEnd = sampleId;
+ }
+
+ if(sampleId==0) dur = 0;
+ if(offset>dur) dur = 0;
+ else dur-=offset;
+ time+=((float)dur)/scale;
+
+ if(dc->seek && time>dc->seekWhere) seekPositionFound = 1;
+
+ if(dc->seek && seekPositionFound) {
+ seekPositionFound = 0;
+ clearOutputBuffer(cb);
+ dc->seek = 0;
+ }
+
+ if(dc->seek) continue;
+
+ if(mp4ff_read_sample(mp4fh,track,sampleId,&mp4Buffer,
+ &mp4BufferSize) == 0)
+ {
+ eof = 1;
+ continue;
+ }
+
+#ifdef HAVE_FAAD_BUFLEN_FUNCS
+ sampleBuffer = faacDecDecode(decoder,&frameInfo,mp4Buffer,
+ mp4BufferSize);
+#else
+ sampleBuffer = faacDecDecode(decoder,&frameInfo,mp4Buffer);
+#endif
+
+ if(mp4Buffer) free(mp4Buffer);
+ if(frameInfo.error > 0) {
+ ERROR("error decoding MP4 file: %s\n",dc->file);
+ ERROR("faad2 error: %s\n",
+ faacDecGetErrorMessage(frameInfo.error));
+ eof = 1;
+ break;
+ }
+
+ if(dc->state != DECODE_STATE_DECODE) {
+ channels = frameInfo.channels;
+#ifdef HAVE_FAACDECFRAMEINFO_SAMPLERATE
+ scale = frameInfo.samplerate;
+#endif
+ dc->audioFormat.sampleRate = scale;
+ dc->audioFormat.channels = frameInfo.channels;
+ getOutputAudioFormat(&(dc->audioFormat),
+ &(cb->audioFormat));
+ dc->state = DECODE_STATE_DECODE;
+ }
+
+ if(channels*(dur+offset) > frameInfo.samples) {
+ dur = frameInfo.samples/channels;
+ offset = 0;
+ }
+
+ sampleCount = (unsigned long)(dur*channels);
+
+ if(sampleCount>0) {
+ initial =0;
+ bitRate = frameInfo.bytesconsumed*8.0*
+ frameInfo.channels*scale/
+ frameInfo.samples/1000+0.5;
+ }
+
+
+ sampleBufferLen = sampleCount*2;
+
+ sampleBuffer+=offset*channels*2;
+
+ sendDataToOutputBuffer(cb, NULL, dc, 1, sampleBuffer,
+ sampleBufferLen, time, bitRate);
+ if(dc->stop) {
+ eof = 1;
+ break;
+ }
+ }
+
+ flushOutputBuffer(cb);
+
+ free(seekTable);
+ faacDecClose(decoder);
+ mp4ff_close(mp4fh);
+ closeInputStream(&inStream);
+ free(mp4cb);
+
+ if(dc->state != DECODE_STATE_DECODE) return -1;
+
+ /*if(dc->seek) {
+ dc->seekError = 1;
+ dc->seek = 0;
+ }*/
+
+ if(dc->stop) {
+ dc->state = DECODE_STATE_STOP;
+ dc->stop = 0;
+ }
+ else dc->state = DECODE_STATE_STOP;
+
+ return 0;
+}
+
+MpdTag * mp4DataDup(char * file, int * mp4MetadataFound) {
+ MpdTag * ret = NULL;
+ InputStream inStream;
+ mp4ff_t * mp4fh;
+ mp4ff_callback_t * cb;
+ int32_t track;
+ int32_t time;
+ int32_t scale;
+
+ *mp4MetadataFound = 0;
+
+ if(openInputStream(file) < 0) return NULL;
+
+ cb = malloc(sizeof(mp4ff_callback_t));
+ cb->read = mp4_inputStreamReadCallback;
+ cb->seek = mp4_inputStreamSeekCallback;
+ cb->user_data = &inStream;
+
+ mp4fh = mp4ff_open_read(cb);
+ if(!mp4fh) {
+ free(cb);
+ closeInputStream(&inStream);
+ return NULL;
+ }
+
+ track = mp4_getAACTrack(mp4fh);
+ if(track < 0) {
+ mp4ff_close(mp4fh);
+ closeInputStream(&inStream);
+ free(cb);
+ return NULL;
+ }
+
+ ret = newMpdTag();
+ time = mp4ff_get_track_duration_use_offsets(mp4fh,track);
+ scale = mp4ff_time_scale(mp4fh,track);
+ if(scale < 0) {
+ mp4ff_close(mp4fh);
+ closeInputStream(&inStream);
+ free(cb);
+ freeMpdTag(ret);
+ return NULL;
+ }
+ ret->time = ((float)time)/scale+0.5;
+
+ if(!mp4ff_meta_get_artist(mp4fh,&ret->artist)) {
+ *mp4MetadataFound = 1;
+ }
+
+ if(!mp4ff_meta_get_album(mp4fh,&ret->album)) {
+ *mp4MetadataFound = 1;
+ }
+
+ if(!mp4ff_meta_get_title(mp4fh,&ret->title)) {
+ *mp4MetadataFound = 1;
+ }
+
+ if(!mp4ff_meta_get_track(mp4fh,&ret->track)) {
+ *mp4MetadataFound = 1;
+ }
+
+ mp4ff_close(mp4fh);
+ closeInputStream(&inStream);
+ free(cb);
+
+ return ret;
+}
+
+MpdTag * mp4TagDup(char * file) {
+ MpdTag * ret = NULL;
+ int mp4MetadataFound = 0;
+
+ ret = mp4DataDup(file, &mp4MetadataFound);
+ if(!ret) return NULL;
+ if(!mp4MetadataFound) {
+ MpdTag * temp = id3Dup(file);
+ if(temp) {
+ temp->time = ret->time;
+ freeMpdTag(ret);
+ ret = temp;
+ }
+ }
+
+ return ret;
+}
+
+char * mp4Suffixes[] = {"m4a", "mp4", NULL};
+
+InputPlugin mp4Plugin =
+{
+ "mp4",
+ NULL,
+ mp4_decode,
+ mp4TagDup,
+ INPUT_PLUGIN_STREAM_FILE,
+ mp4Suffixes,
+ NULL
+};
+
+#else
+
+InputPlugin mp4Plugin =
+{
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ 0,
+ NULL,
+ NULL
+};
+
+#endif /* HAVE_FAAD */