+++ /dev/null
-/*
- * MOV decoder.
- * Copyright (c) 2001 Fabrice Bellard.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include "avformat.h"
-#include "avi.h"
-
-#ifdef CONFIG_ZLIB
-#include <zlib.h>
-#endif
-
-/*
- * First version by Francois Revol revol@free.fr
- *
- * Features and limitations:
- * - reads most of the QT files I have (at least the structure),
- * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
- * FIXED, Francois Revol, 07/17/2002
- * - ffmpeg has nearly none of the usual QuickTime codecs,
- * although I succesfully dumped raw and mp3 audio tracks off .mov files.
- * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
- * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
- * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
- * http://mpeg.telecomitalialab.com/faq.htm
- * - the code is quite ugly... maybe I won't do it recursive next time :-)
- *
- * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
- * when coding this :) (it's a writer anyway)
- *
- * Reference documents:
- * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
- * Apple:
- * http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html
- * http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf
- * QuickTime is a trademark of Apple (AFAIK :))
- */
-
-//#define DEBUG
-#ifdef DEBUG
-#include <stdio.h>
-#include <fcntl.h>
-#endif
-
-/* allows chunk splitting - should work now... */
-/* in case you can't read a file, try commenting */
-#define MOV_SPLIT_CHUNKS
-
-/* Special handling for movies created with Minolta Dimaxe Xi*/
-/* this fix should not interfere with other .mov files, but just in case*/
-#define MOV_MINOLTA_FIX
-
-/* some streams in QT (and in MP4 mostly) aren't either video nor audio */
-/* so we first list them as this, then clean up the list of streams we give back, */
-/* getting rid of these */
-#define CODEC_TYPE_MOV_OTHER (enum CodecType) 2
-
-static const CodecTag mov_video_tags[] = {
-/* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
-/* { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
-/* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
-/* { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, *//* YUV with alpha-channel (AVID Uncompressed) */
-/* Graphics */
-/* Animation */
-/* Apple video */
-/* Kodak Photo CD */
- { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
- { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
- { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
- { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
- { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
-/* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
-/* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
-/* Sorenson video */
- { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
- { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
- { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
- { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
- { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
- { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
-/* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
- { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
- { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
- { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
- { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
-/* { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, *//* AVID dv */
- { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
- { CODEC_ID_NONE, 0 },
-};
-
-static const CodecTag mov_audio_tags[] = {
-/* { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, *//* uncompressed */
- { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
- /* { CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's') },*/ /* 8 bits */
- { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
- { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
- { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
- { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
- { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
- { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
- { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
-
- { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
- { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
- { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
-/* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
-/* MP4 tags */
- { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG 4 AAC or audio ? */
- /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
- { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
- { CODEC_ID_NONE, 0 },
-};
-
-/* the QuickTime file format is quite convoluted...
- * it has lots of index tables, each indexing something in another one...
- * Here we just use what is needed to read the chunks
- */
-
-typedef struct MOV_sample_to_chunk_tbl {
- long first;
- long count;
- long id;
-} MOV_sample_to_chunk_tbl;
-
-typedef struct {
- uint32_t type;
- int64_t offset;
- int64_t size; /* total size (excluding the size and type fields) */
-} MOV_atom_t;
-
-typedef struct {
- int seed;
- int flags;
- int size;
- void* clrs;
-} MOV_ctab_t;
-
-typedef struct {
- uint8_t version;
- uint32_t flags; // 24bit
-
- /* 0x03 ESDescrTag */
- uint16_t es_id;
-#define MP4ODescrTag 0x01
-#define MP4IODescrTag 0x02
-#define MP4ESDescrTag 0x03
-#define MP4DecConfigDescrTag 0x04
-#define MP4DecSpecificDescrTag 0x05
-#define MP4SLConfigDescrTag 0x06
-#define MP4ContentIdDescrTag 0x07
-#define MP4SupplContentIdDescrTag 0x08
-#define MP4IPIPtrDescrTag 0x09
-#define MP4IPMPPtrDescrTag 0x0A
-#define MP4IPMPDescrTag 0x0B
-#define MP4RegistrationDescrTag 0x0D
-#define MP4ESIDIncDescrTag 0x0E
-#define MP4ESIDRefDescrTag 0x0F
-#define MP4FileIODescrTag 0x10
-#define MP4FileODescrTag 0x11
-#define MP4ExtProfileLevelDescrTag 0x13
-#define MP4ExtDescrTagsStart 0x80
-#define MP4ExtDescrTagsEnd 0xFE
- uint8_t stream_priority;
-
- /* 0x04 DecConfigDescrTag */
- uint8_t object_type_id;
- uint8_t stream_type;
- /* XXX: really streamType is
- * only 6bit, followed by:
- * 1bit upStream
- * 1bit reserved
- */
- uint32_t buffer_size_db; // 24
- uint32_t max_bitrate;
- uint32_t avg_bitrate;
-
- /* 0x05 DecSpecificDescrTag */
- uint8_t decoder_cfg_len;
- uint8_t *decoder_cfg;
-
- /* 0x06 SLConfigDescrTag */
- uint8_t sl_config_len;
- uint8_t *sl_config;
-} MOV_esds_t;
-
-struct MOVParseTableEntry;
-
-typedef struct MOVStreamContext {
- int ffindex; /* the ffmpeg stream id */
- int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */
- long next_chunk;
- long chunk_count;
- int64_t *chunk_offsets;
- long sample_to_chunk_sz;
- MOV_sample_to_chunk_tbl *sample_to_chunk;
- long sample_to_chunk_index;
- long sample_size;
- long sample_count;
- long *sample_sizes;
- int time_scale;
- long current_sample;
- long left_in_chunk; /* how many samples before next chunk */
- /* specific MPEG4 header which is added at the beginning of the stream */
- int header_len;
- uint8_t *header_data;
- MOV_esds_t esds;
-} MOVStreamContext;
-
-typedef struct MOVContext {
- int mp4; /* set to 1 as soon as we are sure that the file is an .mp4 file (even some header parsing depends on this) */
- AVFormatContext *fc;
- int time_scale;
- int duration; /* duration of the longest track */
- int found_moov; /* when both 'moov' and 'mdat' sections has been found */
- int found_mdat; /* we suppose we have enough data to read the file */
- int64_t mdat_size;
- int64_t mdat_offset;
- int total_streams;
- /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
- * but we need the info to be able to skip data from those streams in the 'mdat' section
- */
- MOVStreamContext *streams[MAX_STREAMS];
-
- int64_t next_chunk_offset;
- MOVStreamContext *partial; /* != 0 : there is still to read in the current chunk */
- int ctab_size;
- MOV_ctab_t **ctab; /* color tables */
- const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */
- /* NOTE: for recursion save to/ restore from local variable! */
-} MOVContext;
-
-
-/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
-
-/* those functions parse an atom */
-/* return code:
- 1: found what I wanted, exit
- 0: continue to parse next atom
- -1: error occured, exit
- */
-typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
-
-/* links atom IDs to parse functions */
-typedef struct MOVParseTableEntry {
- uint32_t type;
- mov_parse_function func;
-} MOVParseTableEntry;
-
-#ifdef DEBUG
-/*
- * XXX: static sux, even more in a multithreaded environment...
- * Avoid them. This is here just to help debugging.
- */
-static int debug_indent = 0;
-void print_atom(const char *str, MOV_atom_t atom)
-{
- unsigned int tag, i;
- tag = (unsigned int) atom.type;
- i=debug_indent;
- if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L');
- while(i--)
- printf("|");
- printf("parse:");
- printf(" %s: tag=%c%c%c%c offset=0x%x size=0x%x\n",
- str, tag & 0xff,
- (tag >> 8) & 0xff,
- (tag >> 16) & 0xff,
- (tag >> 24) & 0xff,
- (unsigned int)atom.offset,
- (unsigned int)atom.size);
- assert((unsigned int)atom.size < 0x7fffffff);// catching errors
-}
-#else
-#define print_atom(a,b)
-#endif
-
-
-static int mov_read_leaf(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- print_atom("leaf", atom);
-
- if (atom.size>1)
- url_fskip(pb, atom.size);
-/* url_seek(pb, atom_offset+atom.size, SEEK_SET); */
- return 0;
-}
-
-static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- int64_t total_size = 0;
- MOV_atom_t a;
- int i;
- int err = 0;
-
-#ifdef DEBUG
- print_atom("default", atom);
- debug_indent++;
-#endif
-
- a.offset = atom.offset;
-
- if (atom.size < 0)
- atom.size = 0x7fffffffffffffffLL;
- while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
- a.size = atom.size;
- a.type=0L;
- if(atom.size >= 8) {
- a.size = get_be32(pb);
- a.type = get_le32(pb);
- }
- total_size += 8;
- a.offset += 8;
- //printf("type: %08x %.4s sz: %Lx %Lx %Lx\n", type, (char*)&type, size, atom.size, total_size);
- if (a.size == 1) { /* 64 bit extended size */
- a.size = get_be64(pb) - 8;
- a.offset += 8;
- total_size += 8;
- }
- if (a.size == 0) {
- a.size = atom.size - total_size;
- if (a.size <= 8)
- break;
- }
- for (i = 0; c->parse_table[i].type != 0L
- && c->parse_table[i].type != a.type; i++)
- /* empty */;
-
- a.size -= 8;
-// printf(" i=%ld\n", i);
- if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
-// url_seek(pb, atom.offset+atom.size, SEEK_SET);
-#ifdef DEBUG
- print_atom("unknown", a);
-#endif
- url_fskip(pb, a.size);
- } else {
-#ifdef DEBUG
- //char b[5] = { type & 0xff, (type >> 8) & 0xff, (type >> 16) & 0xff, (type >> 24) & 0xff, 0 };
- //print_atom(b, type, offset, size);
-#endif
- err = (c->parse_table[i].func)(c, pb, a);
- }
-
- a.offset += a.size;
- total_size += a.size;
- }
-
- if (!err && total_size < atom.size && atom.size < 0x7ffff) {
- //printf("RESET %Ld %Ld err:%d\n", atom.size, total_size, err);
- url_fskip(pb, atom.size - total_size);
- }
-
-#ifdef DEBUG
- debug_indent--;
-#endif
- return err;
-}
-
-static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- unsigned int len;
- MOV_ctab_t *t;
- //url_fskip(pb, atom.size); // for now
- c->ctab = av_realloc(c->ctab, ++c->ctab_size);
- t = c->ctab[c->ctab_size];
- t->seed = get_be32(pb);
- t->flags = get_be16(pb);
- t->size = get_be16(pb) + 1;
- len = 2 * t->size * 4;
- if (len > 0) {
- t->clrs = av_malloc(len); // 16bit A R G B
- if (t->clrs)
- get_buffer(pb, t->clrs, len);
- }
-
- return 0;
-}
-
-static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st = c->fc->streams[c->fc->nb_streams-1];
- int len = 0;
- uint32_t type;
- uint32_t ctype;
-
- print_atom("hdlr", atom);
-
- get_byte(pb); /* version */
- get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
-
- /* component type */
- ctype = get_le32(pb);
- type = get_le32(pb); /* component subtype */
-
-#ifdef DEBUG
- printf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
- printf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
-#endif
-#ifdef DEBUG
-/* XXX: yeah this is ugly... */
- if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
- if(type == MKTAG('v', 'i', 'd', 'e'))
- puts("hdlr: vide");
- else if(type == MKTAG('s', 'o', 'u', 'n'))
- puts("hdlr: soun");
- } else if(ctype == 0) { /* MP4 */
- if(type == MKTAG('v', 'i', 'd', 'e'))
- puts("hdlr: vide");
- else if(type == MKTAG('s', 'o', 'u', 'n'))
- puts("hdlr: soun");
- else if(type == MKTAG('o', 'd', 's', 'm'))
- puts("hdlr: odsm");
- else if(type == MKTAG('s', 'd', 's', 'm'))
- puts("hdlr: sdsm");
- } else puts("hdlr: meta");
-#endif
-
- if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
- /* helps parsing the string hereafter... */
- c->mp4 = 0;
- if(type == MKTAG('v', 'i', 'd', 'e'))
- st->codec.codec_type = CODEC_TYPE_VIDEO;
- else if(type == MKTAG('s', 'o', 'u', 'n'))
- st->codec.codec_type = CODEC_TYPE_AUDIO;
- } else if(ctype == 0) { /* MP4 */
- /* helps parsing the string hereafter... */
- c->mp4 = 1;
- if(type == MKTAG('v', 'i', 'd', 'e'))
- st->codec.codec_type = CODEC_TYPE_VIDEO;
- else if(type == MKTAG('s', 'o', 'u', 'n'))
- st->codec.codec_type = CODEC_TYPE_AUDIO;
- }
- get_be32(pb); /* component manufacture */
- get_be32(pb); /* component flags */
- get_be32(pb); /* component flags mask */
-
- if(atom.size <= 24)
- return 0; /* nothing left to read */
- /* XXX: MP4 uses a C string, not a pascal one */
- /* component name */
-
- if(c->mp4) {
- /* .mp4: C string */
- while(get_byte(pb) && (++len < (atom.size - 24)));
- } else {
- /* .mov: PASCAL string */
-#ifdef DEBUG
- char* buf;
-#endif
- len = get_byte(pb);
-#ifdef DEBUG
- buf = (uint8_t*) av_malloc(len+1);
- if (buf) {
- get_buffer(pb, buf, len);
- buf[len] = '\0';
- printf("**buf='%s'\n", buf);
- av_free(buf);
- } else
-#endif
- url_fskip(pb, len);
- }
-
- return 0;
-}
-
-static int mov_mp4_read_descr_len(ByteIOContext *pb)
-{
- int len = 0;
- int count = 4;
- while (count--) {
- int c = get_byte(pb);
- len = (len << 7) | (c & 0x7f);
- if (!(c & 0x80))
- break;
- }
- return len;
-}
-
-static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
-{
- int len;
- *tag = get_byte(pb);
- len = mov_mp4_read_descr_len(pb);
-#ifdef DEBUG
- printf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
-#endif
- return len;
-}
-
-static inline unsigned int get_be24(ByteIOContext *s)
-{
- unsigned int val;
- val = get_byte(s) << 16;
- val |= get_byte(s) << 8;
- val |= get_byte(s);
- return val;
-}
-
-static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st = c->fc->streams[c->fc->nb_streams-1];
- MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int64_t start_pos = url_ftell(pb);
- int tag, len;
-
- print_atom("esds", atom);
-
- /* Well, broken but suffisant for some MP4 streams */
- get_be32(pb); /* version + flags */
- len = mov_mp4_read_descr(pb, &tag);
- if (tag == MP4ESDescrTag) {
- get_be16(pb); /* ID */
- get_byte(pb); /* priority */
- } else
- get_be16(pb); /* ID */
-
- len = mov_mp4_read_descr(pb, &tag);
- if (tag == MP4DecConfigDescrTag) {
- sc->esds.object_type_id = get_byte(pb);
- sc->esds.stream_type = get_byte(pb);
- sc->esds.buffer_size_db = get_be24(pb);
- sc->esds.max_bitrate = get_be32(pb);
- sc->esds.avg_bitrate = get_be32(pb);
-
- len = mov_mp4_read_descr(pb, &tag);
- //printf("LEN %d TAG %d m:%d a:%d\n", len, tag, sc->esds.max_bitrate, sc->esds.avg_bitrate);
- if (tag == MP4DecSpecificDescrTag) {
-#ifdef DEBUG
- printf("Specific MPEG4 header len=%d\n", len);
-#endif
- st->codec.extradata = (uint8_t*) av_mallocz(len);
- if (st->codec.extradata) {
- get_buffer(pb, st->codec.extradata, len);
- st->codec.extradata_size = len;
- }
- }
- }
- /* in any case, skip garbage */
- url_fskip(pb, atom.size - ((url_ftell(pb) - start_pos)));
- return 0;
-}
-
-/* this atom contains actual media data */
-static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- print_atom("mdat", atom);
-
- if(atom.size == 0) /* wrong one (MP4) */
- return 0;
- c->found_mdat=1;
- c->mdat_offset = atom.offset;
- c->mdat_size = atom.size;
- if(c->found_moov)
- return 1; /* found both, just go */
- url_fskip(pb, atom.size);
- return 0; /* now go for moov */
-}
-
-/* this atom should contain all header atoms */
-static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- int err;
-
- print_atom("moov", atom);
-
- err = mov_read_default(c, pb, atom);
- /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
- /* so we don't parse the whole file if over a network */
- c->found_moov=1;
- if(c->found_mdat)
- return 1; /* found both, just go */
- return 0; /* now go for mdat */
-}
-
-
-static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- print_atom("mdhd", atom);
-
- get_byte(pb); /* version */
-
- get_byte(pb); get_byte(pb);
- get_byte(pb); /* flags */
-
- get_be32(pb); /* creation time */
- get_be32(pb); /* modification time */
-
- c->streams[c->total_streams]->time_scale = get_be32(pb);
-
-#ifdef DEBUG
- printf("track[%i].time_scale = %i\n", c->fc->nb_streams-1, c->streams[c->total_streams]->time_scale); /* time scale */
-#endif
- get_be32(pb); /* duration */
-
- get_be16(pb); /* language */
- get_be16(pb); /* quality */
-
- return 0;
-}
-
-static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- print_atom("mvhd", atom);
-
- get_byte(pb); /* version */
- get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
-
- get_be32(pb); /* creation time */
- get_be32(pb); /* modification time */
- c->time_scale = get_be32(pb); /* time scale */
-#ifdef DEBUG
- printf("time scale = %i\n", c->time_scale);
-#endif
- c->duration = get_be32(pb); /* duration */
- get_be32(pb); /* preferred scale */
-
- get_be16(pb); /* preferred volume */
-
- url_fskip(pb, 10); /* reserved */
-
- url_fskip(pb, 36); /* display matrix */
-
- get_be32(pb); /* preview time */
- get_be32(pb); /* preview duration */
- get_be32(pb); /* poster time */
- get_be32(pb); /* selection time */
- get_be32(pb); /* selection duration */
- get_be32(pb); /* current time */
- get_be32(pb); /* next track ID */
-
- return 0;
-}
-
-static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st = c->fc->streams[c->fc->nb_streams-1];
-
- // currently SVQ3 decoder expect full STSD header - so let's fake it
- // this should be fixed and just SMI header should be passed
- av_free(st->codec.extradata);
- st->codec.extradata_size = 0x5a + atom.size;
- st->codec.extradata = (uint8_t*) av_mallocz(st->codec.extradata_size);
-
- if (st->codec.extradata) {
- strcpy(st->codec.extradata, "SVQ3"); // fake
- get_buffer(pb, st->codec.extradata + 0x5a, atom.size);
- //printf("Reading SMI %Ld %s\n", atom.size, (char*)st->codec.extradata + 0x5a);
- } else
- url_fskip(pb, atom.size);
-
- return 0;
-}
-
-static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st = c->fc->streams[c->fc->nb_streams-1];
- MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int entries, i;
-
- print_atom("stco", atom);
-
- get_byte(pb); /* version */
- get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
-
- entries = get_be32(pb);
- sc->chunk_count = entries;
- sc->chunk_offsets = (int64_t*) av_malloc(entries * sizeof(int64_t));
- if (!sc->chunk_offsets)
- return -1;
- if (atom.type == MKTAG('s', 't', 'c', 'o')) {
- for(i=0; i<entries; i++) {
- sc->chunk_offsets[i] = get_be32(pb);
- }
- } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
- for(i=0; i<entries; i++) {
- sc->chunk_offsets[i] = get_be64(pb);
- }
- } else
- return -1;
-#ifdef DEBUG
-/*
- for(i=0; i<entries; i++) {
- printf("chunk offset=0x%Lx\n", sc->chunk_offsets[i]);
- }
-*/
-#endif
- return 0;
-}
-
-static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st = c->fc->streams[c->fc->nb_streams-1];
- //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int entries, frames_per_sample;
- uint32_t format;
-
- print_atom("stsd", atom);
-
- get_byte(pb); /* version */
- get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
-
- entries = get_be32(pb);
-
- while(entries--) { //Parsing Sample description table
- enum CodecID id;
- int size = get_be32(pb); /* size */
- format = get_le32(pb); /* data format */
-
- get_be32(pb); /* reserved */
- get_be16(pb); /* reserved */
- get_be16(pb); /* index */
-
- /* for MPEG4: set codec type by looking for it */
- id = codec_get_id(mov_video_tags, format);
- if (id >= 0) {
- AVCodec *codec;
- codec = avcodec_find_decoder(id);
- if (codec)
- st->codec.codec_type = codec->type;
- }
-#ifdef DEBUG
- printf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
- size,
- (format >> 0) & 0xff,
- (format >> 8) & 0xff,
- (format >> 16) & 0xff,
- (format >> 24) & 0xff,
- st->codec.codec_type);
-#endif
- st->codec.codec_tag = format;
- if(st->codec.codec_type==CODEC_TYPE_VIDEO) {
- MOV_atom_t a = { 0, 0, 0 };
- st->codec.codec_id = id;
- get_be16(pb); /* version */
- get_be16(pb); /* revision level */
- get_be32(pb); /* vendor */
- get_be32(pb); /* temporal quality */
- get_be32(pb); /* spacial quality */
- st->codec.width = get_be16(pb); /* width */
- st->codec.height = get_be16(pb); /* height */
-#if 1
- if (st->codec.codec_id == CODEC_ID_MPEG4) {
- /* in some MPEG4 the width/height are not correct, so
- we ignore this info */
- st->codec.width = 0;
- st->codec.height = 0;
- }
-#endif
- get_be32(pb); /* horiz resolution */
- get_be32(pb); /* vert resolution */
- get_be32(pb); /* data size, always 0 */
- frames_per_sample = get_be16(pb); /* frames per samples */
-#ifdef DEBUG
- printf("frames/samples = %d\n", frames_per_sample);
-#endif
- get_buffer(pb, (uint8_t *)st->codec.codec_name, 32); /* codec name */
-
- st->codec.bits_per_sample = get_be16(pb); /* depth */
- st->codec.color_table_id = get_be16(pb); /* colortable id */
-
-/* These are set in mov_read_stts and might already be set!
- st->codec.frame_rate = 25;
- st->codec.frame_rate_base = 1;
-*/
- size -= (16+8*4+2+32+2*2);
-#if 0
- while (size >= 8) {
- MOV_atom_t a;
- int64_t start_pos;
-
- a.size = get_be32(pb);
- a.type = get_le32(pb);
- size -= 8;
-#ifdef DEBUG
- printf("VIDEO: atom_type=%c%c%c%c atom.size=%Ld size_left=%d\n",
- (a.type >> 0) & 0xff,
- (a.type >> 8) & 0xff,
- (a.type >> 16) & 0xff,
- (a.type >> 24) & 0xff,
- a.size, size);
-#endif
- start_pos = url_ftell(pb);
-
- switch(a.type) {
- case MKTAG('e', 's', 'd', 's'):
- {
- int tag, len;
- /* Well, broken but suffisant for some MP4 streams */
- get_be32(pb); /* version + flags */
- len = mov_mp4_read_descr(pb, &tag);
- if (tag == 0x03) {
- /* MP4ESDescrTag */
- get_be16(pb); /* ID */
- get_byte(pb); /* priority */
- len = mov_mp4_read_descr(pb, &tag);
- if (tag != 0x04)
- goto fail;
- /* MP4DecConfigDescrTag */
- get_byte(pb); /* objectTypeId */
- get_be32(pb); /* streamType + buffer size */
- get_be32(pb); /* max bit rate */
- get_be32(pb); /* avg bit rate */
- len = mov_mp4_read_descr(pb, &tag);
- if (tag != 0x05)
- goto fail;
- /* MP4DecSpecificDescrTag */
-#ifdef DEBUG
- printf("Specific MPEG4 header len=%d\n", len);
-#endif
- sc->header_data = av_mallocz(len);
- if (sc->header_data) {
- get_buffer(pb, sc->header_data, len);
- sc->header_len = len;
- }
- }
- /* in any case, skip garbage */
- }
- break;
- default:
- break;
- }
- fail:
- printf("ATOMENEWSIZE %Ld %d\n", atom.size, url_ftell(pb) - start_pos);
- if (atom.size > 8) {
- url_fskip(pb, (atom.size - 8) -
- ((url_ftell(pb) - start_pos)));
- size -= atom.size - 8;
- }
- }
- if (size > 0) {
- /* unknown extension */
- url_fskip(pb, size);
- }
-#else
- a.size = size;
- mov_read_default(c, pb, a);
-#endif
- } else {
- st->codec.codec_id = codec_get_id(mov_audio_tags, format);
- if(st->codec.codec_id==CODEC_ID_AMR_NB) //from TS26.244
- {
-#ifdef DEBUG
- printf("AMR-NB audio identified!!\n");
-#endif
- get_be32(pb);get_be32(pb); //Reserved_8
- get_be16(pb);//Reserved_2
- get_be16(pb);//Reserved_2
- get_be32(pb);//Reserved_4
- get_be16(pb);//TimeScale
- get_be16(pb);//Reserved_2
-
- //AMRSpecificBox.(10 bytes)
-
-#ifdef DEBUG
- int damr_size=
-#endif
- get_be32(pb); //size
-#ifdef DEBUG
- int damr_type=
-#endif
- get_be32(pb); //type=='damr'
-#ifdef DEBUG
- int damr_vendor=
-#endif
- get_be32(pb); //vendor
- get_byte(pb); //decoder version
- get_be16(pb); //mode_set
- get_byte(pb); //mode_change_period
- get_byte(pb); //frames_per_sample
-
-#ifdef DEBUG
- printf("Audio: damr_type=%c%c%c%c damr_size=%d damr_vendor=%c%c%c%c\n",
- (damr_type >> 24) & 0xff,
- (damr_type >> 16) & 0xff,
- (damr_type >> 8) & 0xff,
- (damr_type >> 0) & 0xff,
- damr_size,
- (damr_vendor >> 24) & 0xff,
- (damr_vendor >> 16) & 0xff,
- (damr_vendor >> 8) & 0xff,
- (damr_vendor >> 0) & 0xff
- );
-#endif
-
- st->duration = AV_NOPTS_VALUE;//Not possible to get from this info, must count number of AMR frames
- st->codec.sample_rate=8000;
- st->codec.channels=1;
- st->codec.bits_per_sample=16;
- st->codec.bit_rate=0; /*It is not possible to tell this before we have
- an audio frame and even then every frame can be different*/
- }
- else if( st->codec.codec_tag == MKTAG( 'm', 'p', '4', 's' ))
- {
- //This is some stuff for the hint track, lets ignore it!
- //Do some mp4 auto detect.
- c->mp4=1;
- size-=(16);
- url_fskip(pb, size); /* The mp4s atom also contians a esds atom that we can skip*/
- }
- else if(size>=(16+20))
- {//16 bytes read, reading atleast 20 more
-#ifdef DEBUG
- printf("audio size=0x%X\n",size);
-#endif
- uint16_t version = get_be16(pb); /* version */
- get_be16(pb); /* revision level */
- get_be32(pb); /* vendor */
-
- st->codec.channels = get_be16(pb); /* channel count */
- st->codec.bits_per_sample = get_be16(pb); /* sample size */
-
- /* handle specific s8 codec */
- get_be16(pb); /* compression id = 0*/
- get_be16(pb); /* packet size = 0 */
-
- st->codec.sample_rate = ((get_be32(pb) >> 16));
- //printf("CODECID %d %d %.4s\n", st->codec.codec_id, CODEC_ID_PCM_S16BE, (char*)&format);
-
- switch (st->codec.codec_id) {
- case CODEC_ID_PCM_S16BE:
- if (st->codec.bits_per_sample == 8)
- st->codec.codec_id = CODEC_ID_PCM_S8;
- /* fall */
- case CODEC_ID_PCM_U8:
- st->codec.bit_rate = st->codec.sample_rate * 8;
- break;
- default:
- ;
- }
-
- //Read QT version 1 fields. In version 0 theese dont exist
-#ifdef DEBUG
- printf("version =%d mp4=%d\n",version,c->mp4);
- printf("size-(16+20+16)=%d\n",size-(16+20+16));
-#endif
- if((version==1) && size>=(16+20+16))
- {
- get_be32(pb); /* samples per packet */
- get_be32(pb); /* bytes per packet */
- get_be32(pb); /* bytes per frame */
- get_be32(pb); /* bytes per sample */
- if(size>(16+20+16))
- {
- //Optional, additional atom-based fields
-#ifdef DEBUG
- printf("offest=0x%X, sizeleft=%d=0x%x,format=%c%c%c%c\n",(int)url_ftell(pb),size - (16 + 20 + 16 ),size - (16 + 20 + 16 ),
- (format >> 0) & 0xff,
- (format >> 8) & 0xff,
- (format >> 16) & 0xff,
- (format >> 24) & 0xff);
-#endif
- MOV_atom_t a = { format, url_ftell(pb), size - (16 + 20 + 16 + 8) };
- mov_read_default(c, pb, a);
- }
- }
- else
- {
- //We should be down to 0 bytes here, but lets make sure.
- size-=(16+20);
-#ifdef DEBUG
- if(size>0)
- printf("skipping 0x%X bytes\n",size-(16+20));
-#endif
- url_fskip(pb, size);
- }
- }
- else
- {
- size-=16;
- //Unknown size, but lets do our best and skip the rest.
-#ifdef DEBUG
- printf("Strange size, skipping 0x%X bytes\n",size);
-#endif
- url_fskip(pb, size);
- }
- }
- }
-
- return 0;
-}
-
-static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st = c->fc->streams[c->fc->nb_streams-1];
- MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int entries, i;
-
- print_atom("stsc", atom);
-
- get_byte(pb); /* version */
- get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
-
- entries = get_be32(pb);
-#ifdef DEBUG
-printf("track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
-#endif
- sc->sample_to_chunk_sz = entries;
- sc->sample_to_chunk = (MOV_sample_to_chunk_tbl*) av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
- if (!sc->sample_to_chunk)
- return -1;
- for(i=0; i<entries; i++) {
- sc->sample_to_chunk[i].first = get_be32(pb);
- sc->sample_to_chunk[i].count = get_be32(pb);
- sc->sample_to_chunk[i].id = get_be32(pb);
-#ifdef DEBUG
-/* printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); */
-#endif
- }
- return 0;
-}
-
-static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st = c->fc->streams[c->fc->nb_streams-1];
- MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int entries, i;
-
- print_atom("stsz", atom);
-
- get_byte(pb); /* version */
- get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
-
- sc->sample_size = get_be32(pb);
- entries = get_be32(pb);
- sc->sample_count = entries;
-#ifdef DEBUG
- printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
-#endif
- if(sc->sample_size)
- return 0; /* there isn't any table following */
- sc->sample_sizes = (long*) av_malloc(entries * sizeof(long));
- if (!sc->sample_sizes)
- return -1;
- for(i=0; i<entries; i++) {
- sc->sample_sizes[i] = get_be32(pb);
-#ifdef DEBUG
-/* printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */
-#endif
- }
- return 0;
-}
-
-static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st = c->fc->streams[c->fc->nb_streams-1];
- //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int entries, i;
- int duration=0;
- int total_sample_count=0;
-
- print_atom("stts", atom);
-
- get_byte(pb); /* version */
- get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
- entries = get_be32(pb);
-
-
-#ifdef DEBUG
-printf("track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
-#endif
- for(i=0; i<entries; i++) {
- int sample_duration;
- int sample_count;
-
- sample_count=get_be32(pb);
- sample_duration = get_be32(pb);
-#ifdef DEBUG
- printf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
-#endif
- duration+=sample_duration*sample_count;
- total_sample_count+=sample_count;
-
-#if 0 //We calculate an average instead, needed by .mp4-files created with nec e606 3g phone
-
- if (!i && st->codec.codec_type==CODEC_TYPE_VIDEO) {
- st->codec.frame_rate_base = sample_duration ? sample_duration : 1;
- st->codec.frame_rate = c->streams[c->total_streams]->time_scale;
-#ifdef DEBUG
- printf("VIDEO FRAME RATE= %i (sd= %i)\n", st->codec.frame_rate, sample_duration);
-#endif
- }
-#endif
- }
-
-#define MAX(a,b) a>b?a:b
-#define MIN(a,b) a>b?b:a
- /*The stsd atom which contain codec type sometimes comes after the stts so we cannot check for codec_type*/
- if(duration>0)
- {
- //Find greatest common divisor to avoid overflow using the Euclidean Algorithm...
- uint32_t max=MAX(duration,total_sample_count);
- uint32_t min=MIN(duration,total_sample_count);
- uint32_t spare=max%min;
-
- while(spare!=0)
- {
- max=min;
- min=spare;
- spare=max%min;
- }
-
- duration/=min;
- total_sample_count/=min;
-
- //Only support constant frame rate. But lets calculate the average. Needed by .mp4-files created with nec e606 3g phone.
- //To get better precision, we use the duration as frame_rate_base
-
- st->codec.frame_rate_base=duration;
- st->codec.frame_rate = c->streams[c->total_streams]->time_scale * total_sample_count;
-
-#ifdef DEBUG
- printf("FRAME RATE average (video or audio)= %f (tot sample count= %i ,tot dur= %i timescale=%d)\n", (float)st->codec.frame_rate/st->codec.frame_rate_base,total_sample_count,duration,c->streams[c->total_streams]->time_scale);
-#endif
- }
- else
- {
- st->codec.frame_rate_base = 1;
- st->codec.frame_rate = c->streams[c->total_streams]->time_scale;
- }
-#undef MAX
-#undef MIN
- return 0;
-}
-
-static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st;
- MOVStreamContext *sc;
-
- print_atom("trak", atom);
-
- st = av_new_stream(c->fc, c->fc->nb_streams);
- if (!st) return -2;
- sc = (MOVStreamContext*) av_mallocz(sizeof(MOVStreamContext));
- if (!sc) {
- av_free(st);
- return -1;
- }
-
- sc->sample_to_chunk_index = -1;
- st->priv_data = sc;
- st->codec.codec_type = CODEC_TYPE_MOV_OTHER;
- st->start_time = 0; /* XXX: check */
- st->duration = (c->duration * (int64_t)AV_TIME_BASE) / c->time_scale;
- c->streams[c->fc->nb_streams-1] = sc;
-
- return mov_read_default(c, pb, atom);
-}
-
-static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- AVStream *st;
-
- print_atom("tkhd", atom);
-
- st = c->fc->streams[c->fc->nb_streams-1];
-
- get_byte(pb); /* version */
-
- get_byte(pb); get_byte(pb);
- get_byte(pb); /* flags */
- /*
- MOV_TRACK_ENABLED 0x0001
- MOV_TRACK_IN_MOVIE 0x0002
- MOV_TRACK_IN_PREVIEW 0x0004
- MOV_TRACK_IN_POSTER 0x0008
- */
-
- get_be32(pb); /* creation time */
- get_be32(pb); /* modification time */
- st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
- get_be32(pb); /* reserved */
- st->start_time = 0; /* check */
- st->duration = (get_be32(pb) * (int64_t)AV_TIME_BASE) / c->time_scale; /* duration */
- get_be32(pb); /* reserved */
- get_be32(pb); /* reserved */
-
- get_be16(pb); /* layer */
- get_be16(pb); /* alternate group */
- get_be16(pb); /* volume */
- get_be16(pb); /* reserved */
-
- url_fskip(pb, 36); /* display matrix */
-
- /* those are fixed-point */
- st->codec.width = get_be32(pb) >> 16; /* track width */
- st->codec.height = get_be32(pb) >> 16; /* track height */
-
- return 0;
-}
-
-/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
-/* like the files created with Adobe Premiere 5.0, for samples see */
-/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
-static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- int err;
-
-#ifdef DEBUG
- print_atom("wide", atom);
- debug_indent++;
-#endif
- if (atom.size < 8)
- return 0; /* continue */
- if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
- url_fskip(pb, atom.size - 4);
- return 0;
- }
- atom.type = get_le32(pb);
- atom.offset += 8;
- atom.size -= 8;
- if (atom.type != MKTAG('m', 'd', 'a', 't')) {
- url_fskip(pb, atom.size);
- return 0;
- }
- err = mov_read_mdat(c, pb, atom);
-#ifdef DEBUG
- debug_indent--;
-#endif
- return err;
-}
-
-
-#ifdef CONFIG_ZLIB
-static int null_read_packet(void *opaque, uint8_t *buf, int buf_size)
-{
- return -1;
-}
-
-static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
-{
- ByteIOContext ctx;
- uint8_t *cmov_data;
- uint8_t *moov_data; /* uncompressed data */
- long cmov_len, moov_len;
- int ret;
-
- print_atom("cmov", atom);
-
- get_be32(pb); /* dcom atom */
- if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
- return -1;
- if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
- dprintf("unknown compression for cmov atom !");
- return -1;
- }
- get_be32(pb); /* cmvd atom */
- if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
- return -1;
- moov_len = get_be32(pb); /* uncompressed size */
- cmov_len = atom.size - 6 * 4;
-
- cmov_data = (uint8_t *) av_malloc(cmov_len);
- if (!cmov_data)
- return -1;
- moov_data = (uint8_t *) av_malloc(moov_len);
- if (!moov_data) {
- av_free(cmov_data);
- return -1;
- }
- get_buffer(pb, cmov_data, cmov_len);
- if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
- return -1;
- if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, null_read_packet, NULL, NULL) != 0)
- return -1;
- ctx.buf_end = ctx.buffer + moov_len;
- atom.type = MKTAG( 'm', 'o', 'o', 'v' );
- atom.offset = 0;
- atom.size = moov_len;
-#ifdef DEBUG
- { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
-#endif
- ret = mov_read_default(c, &ctx, atom);
- av_free(moov_data);
- av_free(cmov_data);
-
- return ret;
-}
-#endif
-
-static const MOVParseTableEntry mov_default_parse_table[] = {
-/* mp4 atoms */
-{ MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
-{ MKTAG( 'c', 'p', 'r', 't' ), mov_read_default },
-{ MKTAG( 'c', 'r', 'h', 'd' ), mov_read_default },
-{ MKTAG( 'c', 't', 't', 's' ), mov_read_leaf }, /* composition time to sample */
-{ MKTAG( 'd', 'i', 'n', 'f' ), mov_read_default }, /* data information */
-{ MKTAG( 'd', 'p', 'n', 'd' ), mov_read_leaf },
-{ MKTAG( 'd', 'r', 'e', 'f' ), mov_read_leaf },
-{ MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
-{ MKTAG( 'e', 'l', 's', 't' ), mov_read_leaf },
-{ MKTAG( 'f', 'r', 'e', 'e' ), mov_read_leaf },
-{ MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
-{ MKTAG( 'h', 'i', 'n', 't' ), mov_read_leaf },
-{ MKTAG( 'h', 'm', 'h', 'd' ), mov_read_leaf },
-{ MKTAG( 'i', 'o', 'd', 's' ), mov_read_leaf },
-{ MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
-{ MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
-{ MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
-{ MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
-{ MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
-{ MKTAG( 'm', 'p', '4', 'a' ), mov_read_default },
-{ MKTAG( 'm', 'p', '4', 's' ), mov_read_default },
-{ MKTAG( 'm', 'p', '4', 'v' ), mov_read_default },
-{ MKTAG( 'm', 'p', 'o', 'd' ), mov_read_leaf },
-{ MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
-{ MKTAG( 'n', 'm', 'h', 'd' ), mov_read_leaf },
-{ MKTAG( 'o', 'd', 'h', 'd' ), mov_read_default },
-{ MKTAG( 's', 'd', 'h', 'd' ), mov_read_default },
-{ MKTAG( 's', 'k', 'i', 'p' ), mov_read_default },
-{ MKTAG( 's', 'm', 'h', 'd' ), mov_read_leaf }, /* sound media info header */
-{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorrenson extension ??? */
-{ MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
-{ MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
-{ MKTAG( 's', 't', 'd', 'p' ), mov_read_default },
-{ MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
-{ MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
-{ MKTAG( 's', 't', 's', 'h' ), mov_read_default },
-{ MKTAG( 's', 't', 's', 's' ), mov_read_leaf }, /* sync sample */
-{ MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
-{ MKTAG( 's', 't', 't', 's' ), mov_read_stts },
-{ MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
-{ MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
-{ MKTAG( 't', 'r', 'e', 'f' ), mov_read_default }, /* not really */
-{ MKTAG( 'u', 'd', 't', 'a' ), mov_read_leaf },
-{ MKTAG( 'u', 'r', 'l', ' ' ), mov_read_leaf },
-{ MKTAG( 'u', 'r', 'n', ' ' ), mov_read_leaf },
-{ MKTAG( 'u', 'u', 'i', 'd' ), mov_read_default },
-{ MKTAG( 'v', 'm', 'h', 'd' ), mov_read_leaf }, /* video media info header */
-{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_default },
-/* extra mp4 */
-{ MKTAG( 'M', 'D', 'E', 'S' ), mov_read_leaf },
-/* QT atoms */
-{ MKTAG( 'c', 'h', 'a', 'p' ), mov_read_leaf },
-{ MKTAG( 'c', 'l', 'i', 'p' ), mov_read_default },
-{ MKTAG( 'c', 'r', 'g', 'n' ), mov_read_leaf },
-{ MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
-{ MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
-{ MKTAG( 'k', 'm', 'a', 't' ), mov_read_leaf },
-{ MKTAG( 'm', 'a', 't', 't' ), mov_read_default },
-{ MKTAG( 'r', 'd', 'r', 'f' ), mov_read_leaf },
-{ MKTAG( 'r', 'm', 'd', 'a' ), mov_read_default },
-{ MKTAG( 'r', 'm', 'd', 'r' ), mov_read_leaf },
-{ MKTAG( 'r', 'm', 'r', 'a' ), mov_read_default },
-{ MKTAG( 's', 'c', 'p', 't' ), mov_read_leaf },
-{ MKTAG( 's', 's', 'r', 'c' ), mov_read_leaf },
-{ MKTAG( 's', 'y', 'n', 'c' ), mov_read_leaf },
-{ MKTAG( 't', 'c', 'm', 'd' ), mov_read_leaf },
-{ MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
-//{ MKTAG( 'r', 'm', 'q', 'u' ), mov_read_leaf },
-#ifdef CONFIG_ZLIB
-{ MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
-#else
-{ MKTAG( 'c', 'm', 'o', 'v' ), mov_read_leaf },
-#endif
-{ 0L, mov_read_leaf }
-};
-
-static void mov_free_stream_context(MOVStreamContext *sc)
-{
- if(sc) {
- av_free(sc->chunk_offsets);
- av_free(sc->sample_to_chunk);
- av_free(sc->sample_sizes);
- av_free(sc->header_data);
- av_free(sc);
- }
-}
-
-static inline uint32_t mov_to_tag(uint8_t *buf)
-{
- return MKTAG(buf[0], buf[1], buf[2], buf[3]);
-}
-
-static inline uint32_t to_be32(uint8_t *buf)
-{
- return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
-}
-
-/* XXX: is it sufficient ? */
-static int mov_probe(AVProbeData *p)
-{
- unsigned int offset;
- uint32_t tag;
-
- /* check file header */
- if (p->buf_size <= 12)
- return 0;
- offset = 0;
- for(;;) {
- /* ignore invalid offset */
- if ((offset + 8) > (unsigned int)p->buf_size)
- return 0;
- tag = mov_to_tag(p->buf + offset + 4);
- switch(tag) {
- case MKTAG( 'm', 'o', 'o', 'v' ):
- case MKTAG( 'w', 'i', 'd', 'e' ):
- case MKTAG( 'f', 'r', 'e', 'e' ):
- case MKTAG( 'm', 'd', 'a', 't' ):
- case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
- case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
- return AVPROBE_SCORE_MAX;
- case MKTAG( 'f', 't', 'y', 'p' ):
- case MKTAG( 's', 'k', 'i', 'p' ):
- offset = to_be32(p->buf+offset) + offset;
- break;
- default:
- /* unrecognized tag */
- return 0;
- }
- }
- return 0;
-}
-
-static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
-{
- MOVContext *mov = (MOVContext *) s->priv_data;
- ByteIOContext *pb = &s->pb;
- int i, j, nb, err;
- MOV_atom_t atom = { 0, 0, 0 };
-
- mov->fc = s;
- mov->parse_table = mov_default_parse_table;
-#if 0
- /* XXX: I think we should auto detect */
- if(s->iformat->name[1] == 'p')
- mov->mp4 = 1;
-#endif
- if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
- atom.size = url_filesize(url_fileno(pb));
- else
- atom.size = 0x7FFFFFFFFFFFFFFFLL;
-
-#ifdef DEBUG
- printf("filesz=%Ld\n", atom.size);
-#endif
-
- /* check MOV header */
- err = mov_read_default(mov, pb, atom);
- if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
- fprintf(stderr, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%lld\n",
- err, mov->found_moov, mov->found_mdat, url_ftell(pb));
- return -1;
- }
-#ifdef DEBUG
- printf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
-#endif
- /* some cleanup : make sure we are on the mdat atom */
- if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
- url_fseek(pb, mov->mdat_offset, SEEK_SET);
-
- mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */
-
-#ifdef DEBUG
- printf("mdat_reset_offset=%d\n", (int) url_ftell(pb));
-#endif
-
-#ifdef DEBUG
- printf("streams= %d\n", s->nb_streams);
-#endif
- mov->total_streams = nb = s->nb_streams;
-
-#if 1
- for(i=0; i<s->nb_streams;) {
- if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */
- av_free(s->streams[i]);
- for(j=i+1; j<s->nb_streams; j++)
- s->streams[j-1] = s->streams[j];
- s->nb_streams--;
- } else
- i++;
- }
- for(i=0; i<s->nb_streams;i++) {
- MOVStreamContext *sc;
- sc = (MOVStreamContext *)s->streams[i]->priv_data;
- sc->ffindex = i;
- sc->is_ff_stream = 1;
- }
-#endif
-#ifdef DEBUG
- printf("real streams= %d\n", s->nb_streams);
-#endif
- return 0;
-}
-
-/* Yes, this is ugly... I didn't write the specs of QT :p */
-/* XXX:remove useless commented code sometime */
-static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
- MOVContext *mov = (MOVContext *) s->priv_data;
- MOVStreamContext *sc;
- int64_t offset = 0x0FFFFFFFFFFFFFFFLL;
- int i;
- int size;
- size = 0x0FFFFFFF;
-
-#ifdef MOV_SPLIT_CHUNKS
- if (mov->partial) {
-
- int idx;
-
- sc = mov->partial;
- idx = sc->sample_to_chunk_index;
-
- if (idx < 0) return 0;
- size = sc->sample_sizes[sc->current_sample];
-
- sc->current_sample++;
- sc->left_in_chunk--;
-
- if (sc->left_in_chunk <= 0)
- mov->partial = 0;
- offset = mov->next_chunk_offset;
- /* extract the sample */
-
- goto readchunk;
- }
-#endif
-
-again:
- sc = 0;
- for(i=0; i<mov->total_streams; i++) {
- MOVStreamContext *msc = mov->streams[i];
- //printf("MOCHUNK %ld %d %p pos:%Ld\n", mov->streams[i]->next_chunk, mov->total_streams, mov->streams[i], url_ftell(&s->pb));
- if ((msc->next_chunk < msc->chunk_count) && msc->next_chunk >= 0
- && (msc->chunk_offsets[msc->next_chunk] < offset)) {
- sc = msc;
- offset = msc->chunk_offsets[msc->next_chunk];
- //printf("SELETED %Ld i:%d\n", offset, i);
- }
- }
- if (!sc || offset==0x0FFFFFFFFFFFFFFFLL)
- return -1;
-
- sc->next_chunk++;
-
- if(mov->next_chunk_offset < offset) { /* some meta data */
- url_fskip(&s->pb, (offset - mov->next_chunk_offset));
- mov->next_chunk_offset = offset;
- }
-
-//printf("chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset);
- if(!sc->is_ff_stream) {
- url_fskip(&s->pb, (offset - mov->next_chunk_offset));
- mov->next_chunk_offset = offset;
- offset = 0x0FFFFFFFFFFFFFFFLL;
- goto again;
- }
-
- /* now get the chunk size... */
-
- for(i=0; i<mov->total_streams; i++) {
- MOVStreamContext *msc = mov->streams[i];
- if ((msc->next_chunk < msc->chunk_count)
- && ((msc->chunk_offsets[msc->next_chunk] - offset) < size))
- size = msc->chunk_offsets[msc->next_chunk] - offset;
- }
-
-#ifdef MOV_MINOLTA_FIX
- //Make sure that size is according to sample_size (Needed by .mov files
- //created on a Minolta Dimage Xi where audio chunks contains waste data in the end)
- //Maybe we should really not only check sc->sample_size, but also sc->sample_sizes
- //but I have no such movies
- if (sc->sample_size > 0) {
- int foundsize=0;
- for(i=0; i<(sc->sample_to_chunk_sz); i++) {
- if( (sc->sample_to_chunk[i].first)<=(sc->next_chunk) && (sc->sample_size>0) )
- {
- foundsize=sc->sample_to_chunk[i].count*sc->sample_size;
- }
-#ifdef DEBUG
- /*printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id);*/
-#endif
- }
- if( (foundsize>0) && (foundsize<size) )
- {
-#ifdef DEBUG
- /*printf("this size should actually be %d\n",foundsize);*/
-#endif
- size=foundsize;
- }
- }
-#endif //MOV_MINOLTA_FIX
-
-#ifdef MOV_SPLIT_CHUNKS
- /* split chunks into samples */
- if (sc->sample_size == 0) {
- int idx = sc->sample_to_chunk_index;
- if ((idx + 1 < sc->sample_to_chunk_sz)
- && (sc->next_chunk >= sc->sample_to_chunk[idx + 1].first))
- idx++;
- sc->sample_to_chunk_index = idx;
- if (idx >= 0 && sc->sample_to_chunk[idx].count != 1) {
- mov->partial = sc;
- /* we'll have to get those samples before next chunk */
- sc->left_in_chunk = sc->sample_to_chunk[idx].count - 1;
- size = sc->sample_sizes[sc->current_sample];
- }
-
- sc->current_sample++;
- }
-#endif
-
-readchunk:
-//printf("chunk: [%i] %lli -> %lli (%i)\n", st_id, offset, offset + size, size);
- if(size == 0x0FFFFFFF)
- size = mov->mdat_size + mov->mdat_offset - offset;
- if(size < 0)
- return -1;
- if(size == 0)
- return -1;
- url_fseek(&s->pb, offset, SEEK_SET);
-
- //printf("READCHUNK hlen: %d %d off: %Ld pos:%Ld\n", size, sc->header_len, offset, url_ftell(&s->pb));
- if (sc->header_len > 0) {
- av_new_packet(pkt, size + sc->header_len);
- memcpy(pkt->data, sc->header_data, sc->header_len);
- get_buffer(&s->pb, pkt->data + sc->header_len, size);
- /* free header */
- av_freep(&sc->header_data);
- sc->header_len = 0;
- } else {
- av_new_packet(pkt, size);
- get_buffer(&s->pb, pkt->data, pkt->size);
- }
- pkt->stream_index = sc->ffindex;
-
-#ifdef DEBUG
-/*
- printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size);
- for(i=0; i<8; i++)
- printf("%02x ", pkt->data[i]);
- for(i=0; i<8; i++)
- printf("%c ", (pkt->data[i]) & 0x7F);
- puts("");
-*/
-#endif
-
- mov->next_chunk_offset = offset + size;
-
- return 0;
-}
-
-static int mov_read_close(AVFormatContext *s)
-{
- int i;
- MOVContext *mov = (MOVContext *) s->priv_data;
- for(i=0; i<mov->total_streams; i++)
- mov_free_stream_context(mov->streams[i]);
- for(i=0; i<s->nb_streams; i++)
- av_freep(&s->streams[i]);
- /* free color tabs */
- for(i=0; i<mov->ctab_size; i++)
- av_freep(&mov->ctab[i]);
- av_freep(&mov->ctab);
- return 0;
-}
-
-static AVInputFormat mov_iformat = {
- "mov",
- "QuickTime/MPEG4 format",
- sizeof(MOVContext),
- mov_probe,
- mov_read_header,
- mov_read_packet,
- mov_read_close,
-};
-
-int mov_init(void)
-{
- av_register_input_format(&mov_iformat);
- return 0;
-}
projects / synfig.git / blobdiff