diff options
Diffstat (limited to 'faad2/src/common/mp4ff/mp4ff.c')
| -rw-r--r-- | faad2/src/common/mp4ff/mp4ff.c | 475 |
1 files changed, 0 insertions, 475 deletions
diff --git a/faad2/src/common/mp4ff/mp4ff.c b/faad2/src/common/mp4ff/mp4ff.c deleted file mode 100644 index f513e86..0000000 --- a/faad2/src/common/mp4ff/mp4ff.c +++ /dev/null @@ -1,475 +0,0 @@ -/*
-** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
-** Copyright (C) 2003-2005 M. Bakker, Nero 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.
-**
-** The "appropriate copyright message" mentioned in section 2c of the GPLv2
-** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"
-**
-** Commercial non-GPL licensing of this software is possible.
-** For more info contact Nero AG through Mpeg4AAClicense@nero.com.
-**
-** $Id: mp4ff.c,v 1.22 2009/01/26 23:01:40 menno Exp $
-**/
-
-#include <stdlib.h>
-#include <string.h>
-#include "mp4ffint.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,0);
-
- return ff;
-}
-
-mp4ff_t *mp4ff_open_read_metaonly(mp4ff_callback_t *f)
-{
- mp4ff_t *ff = malloc(sizeof(mp4ff_t));
-
- memset(ff, 0, sizeof(mp4ff_t));
-
- ff->stream = f;
-
- parse_atoms(ff,1);
-
- 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);
-}
-
-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));
-}
-
-static int need_parse_when_meta_only(uint8_t atom_type)
-{
- switch(atom_type)
- {
- case ATOM_EDTS:
-// case ATOM_MDIA:
-// case ATOM_MINF:
- case ATOM_DRMS:
- case ATOM_SINF:
- case ATOM_SCHI:
-// case ATOM_STBL:
-// case ATOM_STSD:
- case ATOM_STTS:
- case ATOM_STSZ:
- case ATOM_STZ2:
- case ATOM_STCO:
- case ATOM_STSC:
-// case ATOM_CTTS:
- case ATOM_FRMA:
- case ATOM_IVIV:
- case ATOM_PRIV:
- return 0;
- default:
- return 1;
- }
-}
-
-/* parse atoms that are sub atoms of other atoms */
-int32_t parse_sub_atoms(mp4ff_t *f, const uint64_t total_size,int meta_only)
-{
- 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 (meta_only && !need_parse_when_meta_only(atom_type))
- {
- mp4ff_set_position(f, mp4ff_position(f)+size-header_size);
- } else if (atom_type < SUBATOMIC)
- {
- parse_sub_atoms(f, size-header_size,meta_only);
- } else {
- mp4ff_atom_read(f, (uint32_t)size, atom_type);
- }
- }
-
- return 0;
-}
-
-/* parse root atoms */
-int32_t parse_atoms(mp4ff_t *f,int meta_only)
-{
- 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 (meta_only && !need_parse_when_meta_only(atom_type))
- {
- mp4ff_set_position(f, mp4ff_position(f)+size-header_size);
- } else if (atom_type < SUBATOMIC)
- {
- parse_sub_atoms(f, size-header_size,meta_only);
- } 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;
-}
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