Now commit the actual dir

git-svn-id: https://svn.musicpd.org/mpd/trunk@4463 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 428 insertions, 0 deletions

diff --git a/mp4ff/mp4ff.c b/mp4ff/mp4ff.c
new file mode 100644
index 000000000..07dc99f3f
--- /dev/null
+++ b/mp4ff/mp4ff.c
@@ -0,0 +1,428 @@
+/*
+** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
+** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com
+**
+** 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.
+**
+** Any non-GPL usage of this software or parts of this software is strictly
+** forbidden.
+**
+** Commercial non-GPL licensing of this software is possible.
+** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
+**
+** $Id: mp4ff.c,v 1.15 2004/01/11 15:52:18 menno Exp $
+**/
+
+#include <stdlib.h>
+#include <string.h>
+#include "mp4ffint.h"
+
+#include "drms.h"
+
+mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f)
+{
+    mp4ff_t *ff = malloc(sizeof(mp4ff_t));
+
+    memset(ff, 0, sizeof(mp4ff_t));
+
+    ff->stream = f;
+
+    parse_atoms(ff);
+
+    return ff;
+}
+
+void mp4ff_close(mp4ff_t *ff)
+{
+    int32_t i;
+
+    for (i = 0; i < ff->total_tracks; i++)
+    {
+        if (ff->track[i])
+        {
+            if (ff->track[i]->stsz_table)
+                free(ff->track[i]->stsz_table);
+            if (ff->track[i]->stts_sample_count)
+                free(ff->track[i]->stts_sample_count);
+            if (ff->track[i]->stts_sample_delta)
+                free(ff->track[i]->stts_sample_delta);
+            if (ff->track[i]->stsc_first_chunk)
+                free(ff->track[i]->stsc_first_chunk);
+            if (ff->track[i]->stsc_samples_per_chunk)
+                free(ff->track[i]->stsc_samples_per_chunk);
+            if (ff->track[i]->stsc_sample_desc_index)
+                free(ff->track[i]->stsc_sample_desc_index);
+            if (ff->track[i]->stco_chunk_offset)
+                free(ff->track[i]->stco_chunk_offset);
+            if (ff->track[i]->decoderConfig)
+                free(ff->track[i]->decoderConfig);
+			if (ff->track[i]->ctts_sample_count)
+				free(ff->track[i]->ctts_sample_count);
+			if (ff->track[i]->ctts_sample_offset)
+				free(ff->track[i]->ctts_sample_offset);
+#ifdef ITUNES_DRM
+            if (ff->track[i]->p_drms)
+                drms_free(ff->track[i]->p_drms);
+#endif
+            free(ff->track[i]);
+        }
+    }
+
+#ifdef USE_TAGGING
+    mp4ff_tag_delete(&(ff->tags));
+#endif
+
+    if (ff) free(ff);
+}
+
+static void mp4ff_track_add(mp4ff_t *f)
+{
+    f->total_tracks++;
+
+    f->track[f->total_tracks - 1] = malloc(sizeof(mp4ff_track_t));
+
+    memset(f->track[f->total_tracks - 1], 0, sizeof(mp4ff_track_t));
+}
+
+/* parse atoms that are sub atoms of other atoms */
+int32_t parse_sub_atoms(mp4ff_t *f, const uint64_t total_size)
+{
+    uint64_t size;
+    uint8_t atom_type = 0;
+    uint64_t counted_size = 0;
+    uint8_t header_size = 0;
+
+    while (counted_size < total_size)
+    {
+        size = mp4ff_atom_read_header(f, &atom_type, &header_size);
+        counted_size += size;
+
+        /* check for end of file */
+        if (size == 0)
+            break;
+
+        /* we're starting to read a new track, update index,
+         * so that all data and tables get written in the right place
+         */
+        if (atom_type == ATOM_TRAK)
+        {
+            mp4ff_track_add(f);
+        }
+
+        /* parse subatoms */
+        if (atom_type < SUBATOMIC)
+        {
+            parse_sub_atoms(f, size-header_size);
+        } else {
+            mp4ff_atom_read(f, (uint32_t)size, atom_type);
+        }
+    }
+
+    return 0;
+}
+
+/* parse root atoms */
+int32_t parse_atoms(mp4ff_t *f)
+{
+    uint64_t size;
+    uint8_t atom_type = 0;
+    uint8_t header_size = 0;
+
+    f->file_size = 0;
+
+    while ((size = mp4ff_atom_read_header(f, &atom_type, &header_size)) != 0)
+    {
+        f->file_size += size;
+        f->last_atom = atom_type;
+
+        if (atom_type == ATOM_MDAT && f->moov_read)
+        {
+            /* moov atom is before mdat, we can stop reading when mdat is encountered */
+            /* file position will stay at beginning of mdat data */
+//            break;
+        }
+
+        if (atom_type == ATOM_MOOV && size > header_size)
+        {
+            f->moov_read = 1;
+            f->moov_offset = mp4ff_position(f)-header_size;
+            f->moov_size = size;
+        }
+
+        /* parse subatoms */
+        if (atom_type < SUBATOMIC)
+        {
+            parse_sub_atoms(f, size-header_size);
+        } else {
+            /* skip this atom */
+            mp4ff_set_position(f, mp4ff_position(f)+size-header_size);
+        }
+    }
+
+    return 0;
+}
+
+int32_t mp4ff_get_decoder_config(const mp4ff_t *f, const int32_t track,
+                                 uint8_t** ppBuf, uint32_t* pBufSize)
+{
+    if (track >= f->total_tracks)
+    {
+        *ppBuf = NULL;
+        *pBufSize = 0;
+        return 1;
+    }
+
+    if (f->track[track]->decoderConfig == NULL || f->track[track]->decoderConfigLen == 0)
+    {
+        *ppBuf = NULL;
+        *pBufSize = 0;
+    } else {
+        *ppBuf = malloc(f->track[track]->decoderConfigLen);
+        if (*ppBuf == NULL)
+        {
+            *pBufSize = 0;
+            return 1;
+        }
+        memcpy(*ppBuf, f->track[track]->decoderConfig, f->track[track]->decoderConfigLen);
+        *pBufSize = f->track[track]->decoderConfigLen;
+    }
+
+    return 0;
+}
+
+int32_t mp4ff_get_track_type(const mp4ff_t *f, const int track)
+{
+	return f->track[track]->type;
+}
+
+int32_t mp4ff_total_tracks(const mp4ff_t *f)
+{
+    return f->total_tracks;
+}
+
+int32_t mp4ff_time_scale(const mp4ff_t *f, const int32_t track)
+{
+    return f->track[track]->timeScale;
+}
+
+uint32_t mp4ff_get_avg_bitrate(const mp4ff_t *f, const int32_t track)
+{
+	return f->track[track]->avgBitrate;
+}
+
+uint32_t mp4ff_get_max_bitrate(const mp4ff_t *f, const int32_t track)
+{
+	return f->track[track]->maxBitrate;
+}
+
+int64_t mp4ff_get_track_duration(const mp4ff_t *f, const int32_t track)
+{
+	return f->track[track]->duration;
+}
+
+int64_t mp4ff_get_track_duration_use_offsets(const mp4ff_t *f, const int32_t track)
+{
+	int64_t duration = mp4ff_get_track_duration(f,track);
+	if (duration!=-1)
+	{
+		int64_t offset = mp4ff_get_sample_offset(f,track,0);
+		if (offset > duration) duration = 0;
+		else duration -= offset;
+	}
+	return duration;
+}
+
+
+int32_t mp4ff_num_samples(const mp4ff_t *f, const int32_t track)
+{
+    int32_t i;
+    int32_t total = 0;
+
+    for (i = 0; i < f->track[track]->stts_entry_count; i++)
+    {
+        total += f->track[track]->stts_sample_count[i];
+    }
+    return total;
+}
+
+
+
+
+uint32_t mp4ff_get_sample_rate(const mp4ff_t *f, const int32_t track)
+{
+	return f->track[track]->sampleRate;
+}
+
+uint32_t mp4ff_get_channel_count(const mp4ff_t * f,const int32_t track)
+{
+	return f->track[track]->channelCount;
+}
+
+uint32_t mp4ff_get_audio_type(const mp4ff_t * f,const int32_t track)
+{
+	return f->track[track]->audioType;
+}
+
+int32_t mp4ff_get_sample_duration_use_offsets(const mp4ff_t *f, const int32_t track, const int32_t sample)
+{
+	int32_t d,o;
+	d = mp4ff_get_sample_duration(f,track,sample);
+	if (d!=-1)
+	{
+		o = mp4ff_get_sample_offset(f,track,sample);
+		if (o>d) d = 0;
+		else d -= o;
+	}
+	return d;
+}
+
+int32_t mp4ff_get_sample_duration(const mp4ff_t *f, const int32_t track, const int32_t sample)
+{
+    int32_t i, co = 0;
+
+    for (i = 0; i < f->track[track]->stts_entry_count; i++)
+    {
+		int32_t delta = f->track[track]->stts_sample_count[i];
+		if (sample < co + delta)
+			return f->track[track]->stts_sample_delta[i];
+		co += delta;
+    }
+    return (int32_t)(-1);
+}
+
+int64_t mp4ff_get_sample_position(const mp4ff_t *f, const int32_t track, const int32_t sample)
+{
+    int32_t i, co = 0;
+	int64_t acc = 0;
+
+    for (i = 0; i < f->track[track]->stts_entry_count; i++)
+    {
+		int32_t delta = f->track[track]->stts_sample_count[i];
+		if (sample < co + delta)
+		{
+			acc += f->track[track]->stts_sample_delta[i] * (sample - co);
+			return acc;
+		}
+		else
+		{
+			acc += f->track[track]->stts_sample_delta[i] * delta;
+		}
+		co += delta;
+    }
+    return (int64_t)(-1);
+}
+
+int32_t mp4ff_get_sample_offset(const mp4ff_t *f, const int32_t track, const int32_t sample)
+{
+    int32_t i, co = 0;
+
+    for (i = 0; i < f->track[track]->ctts_entry_count; i++)
+    {
+		int32_t delta = f->track[track]->ctts_sample_count[i];
+		if (sample < co + delta)
+			return f->track[track]->ctts_sample_offset[i];
+		co += delta;
+    }
+    return 0;
+}
+
+int32_t mp4ff_find_sample(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip)
+{
+	int32_t i, co = 0;
+	int64_t offset_total = 0;
+	mp4ff_track_t * p_track = f->track[track];
+
+	for (i = 0; i < p_track->stts_entry_count; i++)
+	{
+		int32_t sample_count = p_track->stts_sample_count[i];
+		int32_t sample_delta = p_track->stts_sample_delta[i];
+		int64_t offset_delta = (int64_t)sample_delta * (int64_t)sample_count;
+		if (offset < offset_total + offset_delta)
+		{
+			int64_t offset_fromstts = offset - offset_total;
+			if (toskip) *toskip = (int32_t)(offset_fromstts % sample_delta);
+			return co + (int32_t)(offset_fromstts / sample_delta);
+		}
+		else
+		{
+			offset_total += offset_delta;
+		}
+		co += sample_count;
+	}
+	return (int32_t)(-1);
+}
+
+int32_t mp4ff_find_sample_use_offsets(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip)
+{
+	return mp4ff_find_sample(f,track,offset + mp4ff_get_sample_offset(f,track,0),toskip);
+}
+
+int32_t mp4ff_read_sample(mp4ff_t *f, const int32_t track, const int32_t sample,
+                          uint8_t **audio_buffer,  uint32_t *bytes)
+{
+    int32_t result = 0;
+
+    *bytes = mp4ff_audio_frame_size(f, track, sample);
+
+	if (*bytes==0) return 0;
+
+    *audio_buffer = (uint8_t*)malloc(*bytes);
+
+    mp4ff_set_sample_position(f, track, sample);
+
+    result = mp4ff_read_data(f, *audio_buffer, *bytes);
+
+    if (!result)
+	{
+		free(*audio_buffer);
+		*audio_buffer = 0;
+        return 0;
+	}
+
+#ifdef ITUNES_DRM
+    if (f->track[track]->p_drms != NULL)
+    {
+        drms_decrypt(f->track[track]->p_drms, (uint32_t*)*audio_buffer, *bytes);
+    }
+#endif
+
+    return *bytes;
+}
+
+
+int32_t mp4ff_read_sample_v2(mp4ff_t *f, const int track, const int sample,unsigned char *buffer)
+{
+    int32_t result = 0;
+	int32_t size = mp4ff_audio_frame_size(f,track,sample);
+	if (size<=0) return 0;
+	mp4ff_set_sample_position(f, track, sample);
+	result = mp4ff_read_data(f,buffer,size);
+
+#ifdef ITUNES_DRM
+    if (f->track[track]->p_drms != NULL)
+    {
+        drms_decrypt(f->track[track]->p_drms, (uint32_t*)buffer, size);
+    }
+#endif
+
+    return result;
+}
+
+int32_t mp4ff_read_sample_getsize(mp4ff_t *f, const int track, const int sample)
+{
+	int32_t temp = mp4ff_audio_frame_size(f, track, sample);
+	if (temp<0) temp = 0;
+	return temp;
+}