* 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 <limits.h>
+
#include "avformat.h"
#include "avi.h"
/*
* First version by Francois Revol revol@free.fr
+ * Seek function by Gael Chardon gael.dev@4now.net
*
* Features and limitations:
* - reads most of the QT files I have (at least the structure),
* (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 :-)
+ * - seek is not supported with files that contain edit list
*
* 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
+ * http://developer.apple.com/documentation/QuickTime/QTFF/
+ * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
* QuickTime is a trademark of Apple (AFAIK :))
*/
#include <fcntl.h>
#endif
+#include "qtpalette.h"
+
+
+/* Allows seeking (MOV_SPLIT_CHUNKS should also be defined) */
+#define MOV_SEEK
+
/* allows chunk splitting - should work now... */
/* in case you can't read a file, try commenting */
#define MOV_SPLIT_CHUNKS
{ 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_MPEG4, MKTAG('X', 'V', 'I', 'D') },
+ { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
/* { 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', '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_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
+ { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
+ { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
+ { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
+ { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
+ { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
+ { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
+ { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 produced by Sony HD camera */
{ CODEC_ID_NONE, 0 },
};
{ 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 ? */
+ { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
/* 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_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
+ { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */
+ { CODEC_ID_ALAC,MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
+ { CODEC_ID_QDM2,MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
{ CODEC_ID_NONE, 0 },
};
struct MOVParseTableEntry;
+typedef struct Time2Sample{
+ int count;
+ int duration;
+}Time2Sample;
+
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;
+ int stts_count;
+ Time2Sample *stts_data;
+ int ctts_count;
+ Time2Sample *ctts_data;
+ int edit_count; /* number of 'edit' (elst atom) */
long sample_to_chunk_sz;
MOV_sample_to_chunk_tbl *sample_to_chunk;
long sample_to_chunk_index;
+ int sample_to_time_index;
+ long sample_to_time_sample;
+ uint64_t sample_to_time_time;
+ int sample_to_ctime_index;
+ int sample_to_ctime_sample;
long sample_size;
long sample_count;
long *sample_sizes;
+ long keyframe_count;
+ long *keyframes;
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;
int found_mdat; /* we suppose we have enough data to read the file */
int64_t mdat_size;
int64_t mdat_offset;
+ int ni; ///< non interleaved mode
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
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! */
+
+ AVPaletteControl palette_control;
} MOVContext;
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",
+ av_log(NULL, AV_LOG_DEBUG, "|");
+ av_log(NULL, AV_LOG_DEBUG, "parse:");
+ av_log(NULL, AV_LOG_DEBUG, " %s: tag=%c%c%c%c offset=0x%x size=0x%x\n",
str, tag & 0xff,
(tag >> 8) & 0xff,
(tag >> 16) & 0xff,
}
total_size += 8;
a.offset += 8;
- //printf("type: %08x %.4s sz: %Lx %Lx %Lx\n", type, (char*)&type, size, atom.size, total_size);
+ //av_log(NULL, AV_LOG_DEBUG, "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;
/* empty */;
a.size -= 8;
-// printf(" i=%ld\n", i);
+
+ if(a.size < 0)
+ break;
+
+// av_log(NULL, AV_LOG_DEBUG, " 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
}
if (!err && total_size < atom.size && atom.size < 0x7ffff) {
- //printf("RESET %Ld %Ld err:%d\n", atom.size, total_size, err);
+ //av_log(NULL, AV_LOG_DEBUG, "RESET %Ld %Ld err:%d\n", atom.size, total_size, err);
url_fskip(pb, atom.size - total_size);
}
static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
{
+#if 1
+ url_fskip(pb, atom.size); // for now
+#else
+ VERY VERY BROKEN, NEVER execute this, needs rewrite
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);
if (t->clrs)
get_buffer(pb, t->clrs, len);
}
+#endif
return 0;
}
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]);
+ av_log(NULL, AV_LOG_DEBUG, "ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
+ av_log(NULL, AV_LOG_DEBUG, "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... */
/* helps parsing the string hereafter... */
c->mp4 = 0;
if(type == MKTAG('v', 'i', 'd', 'e'))
- st->codec.codec_type = CODEC_TYPE_VIDEO;
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
else if(type == MKTAG('s', 'o', 'u', 'n'))
- st->codec.codec_type = CODEC_TYPE_AUDIO;
+ 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;
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
else if(type == MKTAG('s', 'o', 'u', 'n'))
- st->codec.codec_type = CODEC_TYPE_AUDIO;
+ st->codec->codec_type = CODEC_TYPE_AUDIO;
}
get_be32(pb); /* component manufacture */
get_be32(pb); /* component flags */
if (buf) {
get_buffer(pb, buf, len);
buf[len] = '\0';
- printf("**buf='%s'\n", buf);
+ av_log(NULL, AV_LOG_DEBUG, "**buf='%s'\n", buf);
av_free(buf);
} else
#endif
url_fskip(pb, len);
}
+ url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
return 0;
}
*tag = get_byte(pb);
len = mov_mp4_read_descr_len(pb);
#ifdef DEBUG
- printf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
+ av_log(NULL, AV_LOG_DEBUG, "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];
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);
+ //av_log(NULL, AV_LOG_DEBUG, "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);
+ av_log(NULL, AV_LOG_DEBUG, "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;
+ st->codec->extradata = (uint8_t*) av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (st->codec->extradata) {
+ get_buffer(pb, st->codec->extradata, len);
+ st->codec->extradata_size = len;
}
}
}
get_be32(pb); /* creation time */
get_be32(pb); /* modification time */
- c->streams[c->total_streams]->time_scale = get_be32(pb);
+ c->streams[c->fc->nb_streams-1]->time_scale = get_be32(pb);
+ av_set_pts_info(c->fc->streams[c->fc->nb_streams-1], 64, 1, c->streams[c->fc->nb_streams-1]->time_scale);
#ifdef DEBUG
- printf("track[%i].time_scale = %i\n", c->fc->nb_streams-1, c->streams[c->total_streams]->time_scale); /* time scale */
+ av_log(NULL, AV_LOG_DEBUG, "track[%i].time_scale = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->time_scale); /* time scale */
#endif
- get_be32(pb); /* duration */
+ c->fc->streams[c->fc->nb_streams-1]->duration= get_be32(pb); /* duration */
get_be16(pb); /* language */
get_be16(pb); /* quality */
get_be32(pb); /* modification time */
c->time_scale = get_be32(pb); /* time scale */
#ifdef DEBUG
- printf("time scale = %i\n", c->time_scale);
+ av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale);
#endif
c->duration = get_be32(pb); /* duration */
get_be32(pb); /* preferred scale */
{
AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+ if((uint64_t)atom.size > (1<<30))
+ return -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) {
- int i;
- 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);
+ av_free(st->codec->extradata);
+ st->codec->extradata_size = 0x5a + atom.size;
+ st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+
+ if (st->codec->extradata) {
+ strcpy(st->codec->extradata, "SVQ3"); // fake
+ get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
+ //av_log(NULL, AV_LOG_DEBUG, "Reading SMI %Ld %s\n", atom.size, (char*)st->codec->extradata + 0x5a);
+ } else
+ url_fskip(pb, atom.size);
+
+ return 0;
+}
+
+static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+ AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+
+ if((uint64_t)atom.size > (1<<30))
+ return -1;
+
+ // pass all frma atom to codec, needed at least for QDM2
+ av_free(st->codec->extradata);
+ st->codec->extradata_size = atom.size;
+ st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+
+ if (st->codec->extradata) {
+ get_buffer(pb, st->codec->extradata, atom.size);
+ //av_log(NULL, AV_LOG_DEBUG, "Reading frma %Ld %s\n", atom.size, (char*)st->codec->extradata);
+ } else
+ url_fskip(pb, atom.size);
+
+ return 0;
+}
+
+static int mov_read_avcC(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+ AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+
+ if((uint64_t)atom.size > (1<<30))
+ return -1;
+
+ av_free(st->codec->extradata);
+
+ st->codec->extradata_size = atom.size;
+ st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+
+ if (st->codec->extradata) {
+ get_buffer(pb, st->codec->extradata, atom.size);
} else
url_fskip(pb, atom.size);
{
AVStream *st = c->fc->streams[c->fc->nb_streams-1];
MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int entries, i;
+ unsigned int i, entries;
print_atom("stco", atom);
get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
entries = get_be32(pb);
+
+ if(entries >= UINT_MAX/sizeof(int64_t))
+ return -1;
+
sc->chunk_count = entries;
sc->chunk_offsets = (int64_t*) av_malloc(entries * sizeof(int64_t));
if (!sc->chunk_offsets)
}
} else
return -1;
+
+ for(i=0; i<c->fc->nb_streams; i++){
+ MOVStreamContext *sc2 = (MOVStreamContext *)c->fc->streams[i]->priv_data;
+ if(sc2 && sc2->chunk_offsets){
+ int64_t first= sc2->chunk_offsets[0];
+ int64_t last= sc2->chunk_offsets[sc2->chunk_count-1];
+ if(first >= sc->chunk_offsets[entries-1] || last <= sc->chunk_offsets[0])
+ c->ni=1;
+ }
+ }
#ifdef DEBUG
/*
for(i=0; i<entries; i++) {
- printf("chunk offset=0x%Lx\n", sc->chunk_offsets[i]);
+ av_log(NULL, AV_LOG_DEBUG, "chunk offset=0x%Lx\n", sc->chunk_offsets[i]);
}
*/
#endif
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;
+ MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
int entries, frames_per_sample;
uint32_t format;
+ uint8_t codec_name[32];
+
+ /* for palette traversal */
+ int color_depth;
+ int color_start;
+ int color_count;
+ int color_end;
+ int color_index;
+ int color_dec;
+ int color_greyscale;
+ unsigned char *color_table;
+ int j;
+ unsigned char r, g, b;
print_atom("stsd", atom);
AVCodec *codec;
codec = avcodec_find_decoder(id);
if (codec)
- st->codec.codec_type = codec->type;
+ st->codec->codec_type = codec->type;
}
#ifdef DEBUG
- printf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
+ av_log(NULL, AV_LOG_DEBUG, "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);
+ st->codec->codec_type);
#endif
- st->codec.codec_tag = format;
- if(st->codec.codec_type==CODEC_TYPE_VIDEO) {
+ 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;
+ 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;
+ if(st->codec->codec_id == CODEC_ID_MPEG4){ //FIXME this is silly
+ get_be16(pb);
+ get_be16(pb);
+ }else{
+ st->codec->width = get_be16(pb); /* width */
+ st->codec->height = get_be16(pb); /* height */
}
-#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);
+ av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample);
#endif
- get_buffer(pb, (uint8_t *)st->codec.codec_name, 32); /* codec name */
+ get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
+ if (codec_name[0] <= 31) {
+ memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
+ st->codec->codec_name[codec_name[0]] = 0;
+ }
- st->codec.bits_per_sample = get_be16(pb); /* depth */
- st->codec.color_table_id = get_be16(pb); /* colortable id */
+ 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;
+ st->codec->time_base.den = 25;
+ st->codec->time_base.num = 1;
*/
size -= (16+8*4+2+32+2*2);
#if 0
a.type = get_le32(pb);
size -= 8;
#ifdef DEBUG
- printf("VIDEO: atom_type=%c%c%c%c atom.size=%Ld size_left=%d\n",
+ av_log(NULL, AV_LOG_DEBUG, "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,
goto fail;
/* MP4DecSpecificDescrTag */
#ifdef DEBUG
- printf("Specific MPEG4 header len=%d\n", len);
+ av_log(NULL, AV_LOG_DEBUG, "Specific MPEG4 header len=%d\n", len);
#endif
sc->header_data = av_mallocz(len);
if (sc->header_data) {
break;
}
fail:
- printf("ATOMENEWSIZE %Ld %d\n", atom.size, url_ftell(pb) - start_pos);
+ av_log(NULL, AV_LOG_DEBUG, "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)));
url_fskip(pb, size);
}
#else
+
+ /* figure out the palette situation */
+ color_depth = st->codec->bits_per_sample & 0x1F;
+ color_greyscale = st->codec->bits_per_sample & 0x20;
+
+ /* if the depth is 2, 4, or 8 bpp, file is palettized */
+ if ((color_depth == 2) || (color_depth == 4) ||
+ (color_depth == 8)) {
+
+ if (color_greyscale) {
+
+ /* compute the greyscale palette */
+ color_count = 1 << color_depth;
+ color_index = 255;
+ color_dec = 256 / (color_count - 1);
+ for (j = 0; j < color_count; j++) {
+ r = g = b = color_index;
+ c->palette_control.palette[j] =
+ (r << 16) | (g << 8) | (b);
+ color_index -= color_dec;
+ if (color_index < 0)
+ color_index = 0;
+ }
+
+ } else if (st->codec->color_table_id & 0x08) {
+
+ /* if flag bit 3 is set, use the default palette */
+ color_count = 1 << color_depth;
+ if (color_depth == 2)
+ color_table = ff_qt_default_palette_4;
+ else if (color_depth == 4)
+ color_table = ff_qt_default_palette_16;
+ else
+ color_table = ff_qt_default_palette_256;
+
+ for (j = 0; j < color_count; j++) {
+ r = color_table[j * 4 + 0];
+ g = color_table[j * 4 + 1];
+ b = color_table[j * 4 + 2];
+ c->palette_control.palette[j] =
+ (r << 16) | (g << 8) | (b);
+ }
+
+ } else {
+
+ /* load the palette from the file */
+ color_start = get_be32(pb);
+ color_count = get_be16(pb);
+ color_end = get_be16(pb);
+ for (j = color_start; j <= color_end; j++) {
+ /* each R, G, or B component is 16 bits;
+ * only use the top 8 bits; skip alpha bytes
+ * up front */
+ get_byte(pb);
+ get_byte(pb);
+ r = get_byte(pb);
+ get_byte(pb);
+ g = get_byte(pb);
+ get_byte(pb);
+ b = get_byte(pb);
+ get_byte(pb);
+ c->palette_control.palette[j] =
+ (r << 16) | (g << 8) | (b);
+ }
+ }
+
+ st->codec->palctrl = &c->palette_control;
+ st->codec->palctrl->palette_changed = 1;
+ } else
+ st->codec->palctrl = NULL;
+
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
+ st->codec->codec_id = codec_get_id(mov_audio_tags, format);
+ if(st->codec->codec_id==CODEC_ID_AMR_NB || st->codec->codec_id==CODEC_ID_AMR_WB) //from TS26.244
{
#ifdef DEBUG
- printf("AMR-NB audio identified!!\n");
+ av_log(NULL, AV_LOG_DEBUG, "AMR-NB or AMR-WB audio identified!!\n");
#endif
get_be32(pb);get_be32(pb); //Reserved_8
get_be16(pb);//Reserved_2
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->time_length=0;//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
+ st->duration = AV_NOPTS_VALUE;//Not possible to get from this info, must count number of AMR frames
+ if(st->codec->codec_id==CODEC_ID_AMR_NB)
+ {
+ st->codec->sample_rate=8000;
+ st->codec->channels=1;
+ }
+ else //AMR-WB
+ {
+ st->codec->sample_rate=16000;
+ 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' ))
+ 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.
size-=(16);
url_fskip(pb, size); /* The mp4s atom also contians a esds atom that we can skip*/
}
+ else if( st->codec->codec_tag == MKTAG( 'm', 'p', '4', 'a' ))
+ {
+ MOV_atom_t a;
+ int mp4_version;
+
+ /* Handle mp4 audio tag */
+ mp4_version=get_be16(pb);/*version*/
+ get_be16(pb); /*revesion*/
+ get_be32(pb);
+ st->codec->channels = get_be16(pb); /* channels */
+ st->codec->bits_per_sample = get_be16(pb); /* bits per sample */
+ get_be32(pb);
+ st->codec->sample_rate = get_be16(pb); /* sample rate, not always correct */
+ if(st->codec->sample_rate == 1) //nonsese rate? -> ignore
+ st->codec->sample_rate= 0;
+
+ get_be16(pb);
+ c->mp4=1;
+
+ if(mp4_version==1)
+ {
+ url_fskip(pb,16);
+ a.size=size-(16+20+16);
+ }
+ else
+ a.size=size-(16+20);
+
+ a.offset=url_ftell(pb);
+
+ mov_read_default(c, pb, a);
+
+ /* Get correct sample rate from extradata */
+ if(st->codec->extradata_size) {
+ const int samplerate_table[] = {
+ 96000, 88200, 64000, 48000, 44100, 32000,
+ 24000, 22050, 16000, 12000, 11025, 8000,
+ 7350, 0, 0, 0
+ };
+ unsigned char *px = st->codec->extradata;
+ // 5 bits objectTypeIndex, 4 bits sampleRateIndex, 4 bits channels
+ int samplerate_index = ((px[0] & 7) << 1) + ((px[1] >> 7) & 1);
+ st->codec->sample_rate = samplerate_table[samplerate_index];
+ st->codec->channels = (px[1] >> 3) & 15;
+ }
+ }
+ else if( st->codec->codec_tag == MKTAG( 'a', 'l', 'a', 'c' ))
+ {
+ /* Handle alac audio tag + special extradata */
+ get_be32(pb); /* version */
+ get_be32(pb);
+ st->codec->channels = get_be16(pb); /* channels */
+ st->codec->bits_per_sample = get_be16(pb); /* bits per sample */
+ get_be32(pb);
+ st->codec->sample_rate = get_be16(pb);
+ get_be16(pb);
+
+ /* fetch the 36-byte extradata needed for alac decoding */
+ st->codec->extradata_size = 36;
+ st->codec->extradata = (uint8_t*)
+ av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
+ }
else if(size>=(16+20))
{//16 bytes read, reading atleast 20 more
+ uint16_t version;
#ifdef DEBUG
- printf("audio size=0x%X\n",size);
+ av_log(NULL, AV_LOG_DEBUG, "audio size=0x%X\n",size);
#endif
- uint16_t version = get_be16(pb); /* version */
+ 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 */
+ 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);
+ st->codec->sample_rate = ((get_be32(pb) >> 16));
+ //av_log(NULL, AV_LOG_DEBUG, "CODECID %d %d %.4s\n", st->codec->codec_id, CODEC_ID_PCM_S16BE, (char*)&format);
- switch (st->codec.codec_id) {
+ 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;
+ 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;
+ 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));
+ av_log(NULL, AV_LOG_DEBUG, "version =%d mp4=%d\n",version,c->mp4);
+ av_log(NULL, AV_LOG_DEBUG, "size-(16+20+16)=%d\n",size-(16+20+16));
#endif
if((version==1) && size>=(16+20+16))
{
if(size>(16+20+16))
{
//Optional, additional atom-based fields
+ MOV_atom_t a = { format, url_ftell(pb), size - (16 + 20 + 16 + 8) };
#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 ),
+ av_log(NULL, AV_LOG_DEBUG, "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);
}
}
size-=(16+20);
#ifdef DEBUG
if(size>0)
- printf("skipping 0x%X bytes\n",size-(16+20));
+ av_log(NULL, AV_LOG_DEBUG, "skipping 0x%X bytes\n",size-(16+20));
#endif
url_fskip(pb, size);
}
size-=16;
//Unknown size, but lets do our best and skip the rest.
#ifdef DEBUG
- printf("Strange size, skipping 0x%X bytes\n",size);
+ av_log(NULL, AV_LOG_DEBUG, "Strange size, skipping 0x%X bytes\n",size);
#endif
url_fskip(pb, size);
}
}
}
+
+ if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) {
+ st->codec->sample_rate= sc->time_scale;
+ }
return 0;
}
{
AVStream *st = c->fc->streams[c->fc->nb_streams-1];
MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int entries, i;
+ unsigned int i, entries;
print_atom("stsc", atom);
get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
entries = get_be32(pb);
+
+ if(entries >= UINT_MAX / sizeof(MOV_sample_to_chunk_tbl))
+ return -1;
+
#ifdef DEBUG
-printf("track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
+av_log(NULL, AV_LOG_DEBUG, "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));
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); */
+/* av_log(NULL, AV_LOG_DEBUG, "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_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+ AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+ MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+ unsigned int i, entries;
+
+ print_atom("stss", atom);
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+ entries = get_be32(pb);
+
+ if(entries >= UINT_MAX / sizeof(long))
+ return -1;
+
+ sc->keyframe_count = entries;
+#ifdef DEBUG
+ av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %ld\n", sc->keyframe_count);
+#endif
+ sc->keyframes = (long*) av_malloc(entries * sizeof(long));
+ if (!sc->keyframes)
+ return -1;
+ for(i=0; i<entries; i++) {
+ sc->keyframes[i] = get_be32(pb);
+#ifdef DEBUG
+/* av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */
#endif
}
return 0;
{
AVStream *st = c->fc->streams[c->fc->nb_streams-1];
MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
- int entries, i;
+ unsigned int i, entries;
print_atom("stsz", atom);
sc->sample_size = get_be32(pb);
entries = get_be32(pb);
+ if(entries >= UINT_MAX / sizeof(long))
+ return -1;
+
sc->sample_count = entries;
#ifdef DEBUG
- printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
+ av_log(NULL, AV_LOG_DEBUG, "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 */
for(i=0; i<entries; i++) {
sc->sample_sizes[i] = get_be32(pb);
#ifdef DEBUG
-/* printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */
+ av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]);
#endif
}
return 0;
{
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;
+ unsigned int i, entries;
+ int64_t duration=0;
+ int64_t 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);
+ if(entries >= UINT_MAX / sizeof(Time2Sample))
+ return -1;
+ c->streams[c->fc->nb_streams-1]->stts_count = entries;
+ c->streams[c->fc->nb_streams-1]->stts_data = av_malloc(entries * sizeof(Time2Sample));
#ifdef DEBUG
-printf("track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
+av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
#endif
for(i=0; i<entries; i++) {
int sample_duration;
sample_count=get_be32(pb);
sample_duration = get_be32(pb);
+ c->streams[c->fc->nb_streams - 1]->stts_data[i].count= sample_count;
+ c->streams[c->fc->nb_streams - 1]->stts_data[i].duration= sample_duration;
+
#ifdef DEBUG
- printf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
+ av_log(NULL, AV_LOG_DEBUG, "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
+ st->nb_frames= total_sample_count;
+ if(duration)
+ st->duration= duration;
+ return 0;
+}
- 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
- }
+static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+// AVStream *st = c->fc->streams[c->fc->nb_streams-1];
+ //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+ unsigned int i, entries;
-#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;
+ print_atom("ctts", atom);
- //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
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+ entries = get_be32(pb);
+ if(entries >= UINT_MAX / sizeof(Time2Sample))
+ return -1;
- st->codec.frame_rate_base=duration;
- st->codec.frame_rate = c->streams[c->total_streams]->time_scale * total_sample_count;
+ c->streams[c->fc->nb_streams-1]->ctts_count = entries;
+ c->streams[c->fc->nb_streams-1]->ctts_data = av_malloc(entries * sizeof(Time2Sample));
-#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;
+// #ifdef DEBUG
+av_log(NULL, AV_LOG_DEBUG, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
+// #endif
+ for(i=0; i<entries; i++) {
+ c->streams[c->fc->nb_streams - 1]->ctts_data[i].count= get_be32(pb);
+ c->streams[c->fc->nb_streams - 1]->ctts_data[i].duration= get_be32(pb);
}
-#undef MAX
-#undef MIN
return 0;
}
sc->sample_to_chunk_index = -1;
st->priv_data = sc;
- st->codec.codec_type = CODEC_TYPE_MOV_OTHER;
- st->time_length = (c->duration * 1000) / c->time_scale; // time in miliseconds
+ st->codec->codec_type = CODEC_TYPE_MOV_OTHER;
+ st->start_time = 0; /* XXX: check */
c->streams[c->fc->nb_streams-1] = sc;
return mov_read_default(c, pb, atom);
get_be32(pb); /* modification time */
st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
get_be32(pb); /* reserved */
- st->time_length = get_be32(pb) * 1000 / c->time_scale; /* duration */
+ st->start_time = 0; /* check */
+ get_be32(pb); /* highlevel (considering edits) duration in movie timebase */
get_be32(pb); /* reserved */
get_be32(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 */
+ /*st->codec->width =*/ get_be32(pb) >> 16; /* track width */
+ /*st->codec->height =*/ get_be32(pb) >> 16; /* track height */
return 0;
}
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 !");
+ av_log(NULL, AV_LOG_DEBUG, "unknown compression for cmov atom !");
return -1;
}
get_be32(pb); /* cmvd atom */
}
#endif
+/* edit list atom */
+static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
+{
+ int i, edit_count;
+ print_atom("elst", atom);
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+ edit_count= c->streams[c->fc->nb_streams-1]->edit_count = get_be32(pb); /* entries */
+
+ for(i=0; i<edit_count; i++){
+ get_be32(pb); /* Track duration */
+ get_be32(pb); /* Media time */
+ get_be32(pb); /* Media rate */
+ }
+#ifdef DEBUG
+ av_log(NULL, AV_LOG_DEBUG, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->edit_count);
+#endif
+ return 0;
+}
+
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( 'c', 't', 't', 's' ), mov_read_ctts }, /* 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( 'e', 'l', 's', 't' ), mov_read_elst },
{ 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( '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', 'k', 'i', 'p' ), mov_read_leaf },
{ MKTAG( 's', 'm', 'h', 'd' ), mov_read_leaf }, /* sound media info header */
-{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorrenson extension ??? */
+{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
+{ MKTAG( 'a', 'v', 'c', 'C' ), mov_read_avcC },
{ 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', 's' ), mov_read_stss }, /* 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( '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( 'u', 'u', 'i', 'd' ), mov_read_leaf },
{ MKTAG( 'v', 'm', 'h', 'd' ), mov_read_leaf }, /* video media info header */
-{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_default },
+{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave },
/* extra mp4 */
{ MKTAG( 'M', 'D', 'E', 'S' ), mov_read_leaf },
/* QT atoms */
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);
+ av_freep(&sc->chunk_offsets);
+ av_freep(&sc->sample_to_chunk);
+ av_freep(&sc->sample_sizes);
+ av_freep(&sc->keyframes);
+ av_freep(&sc->stts_data);
+ av_freep(&sc->ctts_data);
+ av_freep(&sc);
}
}
{
unsigned int offset;
uint32_t tag;
+ int score = 0;
/* check file header */
if (p->buf_size <= 12)
for(;;) {
/* ignore invalid offset */
if ((offset + 8) > (unsigned int)p->buf_size)
- return 0;
+ return score;
tag = mov_to_tag(p->buf + offset + 4);
switch(tag) {
+ /* check for obvious tags */
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;
+ /* those are more common words, so rate then a bit less */
+ case MKTAG( 'w', 'i', 'd', 'e' ):
+ case MKTAG( 'f', 'r', 'e', 'e' ):
+ case MKTAG( 'j', 'u', 'n', 'k' ):
+ case MKTAG( 'p', 'i', 'c', 't' ):
+ return AVPROBE_SCORE_MAX - 5;
case MKTAG( 'f', 't', 'y', 'p' ):
case MKTAG( 's', 'k', 'i', 'p' ):
+ case MKTAG( 'u', 'u', 'i', 'd' ):
offset = to_be32(p->buf+offset) + offset;
+ /* if we only find those cause probedata is too small at least rate them */
+ score = AVPROBE_SCORE_MAX - 50;
break;
default:
/* unrecognized tag */
- return 0;
+ return score;
}
}
- return 0;
+ return score;
}
static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
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));
+ atom.size = url_fsize(pb);
else
atom.size = 0x7FFFFFFFFFFFFFFFLL;
#ifdef DEBUG
- printf("filesz=%Ld\n", atom.size);
+ av_log(NULL, AV_LOG_DEBUG, "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",
+ av_log(s, AV_LOG_ERROR, "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));
+ av_log(NULL, AV_LOG_DEBUG, "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))
mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */
#ifdef DEBUG
- printf("mdat_reset_offset=%d\n", (int) url_ftell(pb));
+ av_log(NULL, AV_LOG_DEBUG, "mdat_reset_offset=%d\n", (int) url_ftell(pb));
#endif
#ifdef DEBUG
- printf("streams= %d\n", s->nb_streams);
+ av_log(NULL, AV_LOG_DEBUG, "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 */
+ 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];
}
#endif
#ifdef DEBUG
- printf("real streams= %d\n", s->nb_streams);
+ av_log(NULL, AV_LOG_DEBUG, "real streams= %d\n", s->nb_streams);
#endif
return 0;
}
{
MOVContext *mov = (MOVContext *) s->priv_data;
MOVStreamContext *sc;
- int64_t offset = 0x0FFFFFFFFFFFFFFFLL;
- int i;
+ int64_t offset = INT64_MAX;
+ int64_t best_dts = INT64_MAX;
+ int i, a, b, m;
int size;
+ int idx;
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];
+#ifdef DEBUG
+ fprintf(stderr, "sc[ffid %d]->sample_size = %d\n", sc->ffindex, sc->sample_size);
+#endif
+ //size = sc->sample_sizes[sc->current_sample];
+ // that ain't working...
+ //size = (sc->sample_size)?sc->sample_size:sc->sample_sizes[sc->current_sample];
+ size = (sc->sample_size > 1)?sc->sample_size:sc->sample_sizes[sc->current_sample];
sc->current_sample++;
sc->left_in_chunk--;
again:
sc = 0;
+ if(offset == INT64_MAX)
+ best_dts= INT64_MAX;
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 ((msc->next_chunk < msc->chunk_count) && msc->next_chunk >= 0){
+ if (msc->sample_to_time_index < msc->stts_count && mov->ni) {
+ int64_t dts;
+ int index= msc->sample_to_time_index;
+ int sample= msc->sample_to_time_sample;
+ int time= msc->sample_to_time_time;
+ int duration = msc->stts_data[index].duration;
+ int count = msc->stts_data[index].count;
+ if (sample + count < msc->current_sample) {
+ sample += count;
+ time += count*duration;
+ index ++;
+ duration = msc->stts_data[index].duration;
+ }
+ dts = time + (msc->current_sample-1 - sample) * (int64_t)duration;
+ dts = av_rescale(dts, AV_TIME_BASE, msc->time_scale);
+// av_log(NULL, AV_LOG_DEBUG, "%d %Ld %Ld %Ld \n", i, dts, best_dts, offset);
+ if(dts < best_dts){
+ best_dts= dts;
+ sc = msc;
+ offset = msc->chunk_offsets[msc->next_chunk];
+ }
+ }else{
+ //av_log(NULL, AV_LOG_DEBUG, "MOCHUNK %ld %d %p pos:%Ld\n", mov->streams[i]->next_chunk, mov->total_streams, mov->streams[i], url_ftell(&s->pb));
+ if ((msc->chunk_offsets[msc->next_chunk] < offset)) {
+ sc = msc;
+ offset = msc->chunk_offsets[msc->next_chunk];
+ //av_log(NULL, AV_LOG_DEBUG, "SELETED %Ld i:%d\n", offset, i);
+ }
+ }
}
}
- if (!sc || offset==0x0FFFFFFFFFFFFFFFLL)
+ if (!sc || offset==INT64_MAX)
return -1;
sc->next_chunk++;
mov->next_chunk_offset = offset;
}
-//printf("chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset);
- if(!sc->is_ff_stream) {
+//av_log(NULL, AV_LOG_DEBUG, "chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset);
+ if(!sc->is_ff_stream || (s->streams[sc->ffindex]->discard >= AVDISCARD_ALL)) {
url_fskip(&s->pb, (offset - mov->next_chunk_offset));
mov->next_chunk_offset = offset;
- offset = 0x0FFFFFFFFFFFFFFFLL;
+ offset = INT64_MAX;
goto again;
}
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))
+ && msc->chunk_offsets[msc->next_chunk] - offset < size
+ && msc->chunk_offsets[msc->next_chunk] > offset)
size = msc->chunk_offsets[msc->next_chunk] - offset;
}
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) )
+ if( (sc->sample_to_chunk[i].first)<=(sc->next_chunk) )
{
- foundsize=sc->sample_to_chunk[i].count*sc->sample_size;
+ // I can't figure out why for PCM audio sample_size is always 1
+ // (it should actually be channels*bits_per_second/8) but it is.
+ AVCodecContext* cod = s->streams[sc->ffindex]->codec;
+ if (sc->sample_size == 1 && (cod->codec_id == CODEC_ID_PCM_S16BE || cod->codec_id == CODEC_ID_PCM_S16LE))
+ foundsize=(sc->sample_to_chunk[i].count*cod->channels*cod->bits_per_sample)/8;
+ else
+ 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);*/
+ av_log(NULL, AV_LOG_DEBUG, "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);*/
+ /*av_log(NULL, AV_LOG_DEBUG, "this size should actually be %d\n",foundsize);*/
#endif
size=foundsize;
}
}
#endif //MOV_MINOLTA_FIX
+ 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;
#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 (sc->sample_size == 0 || sc->sample_size > 100) {
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];
+ size = (sc->sample_size > 1)?sc->sample_size:sc->sample_sizes[sc->current_sample];
}
sc->current_sample++;
+ }else if(idx + 1 < sc->sample_to_chunk_sz){
+ sc->current_sample += sc->sample_size * sc->sample_to_chunk[idx].count;
}
#endif
readchunk:
-//printf("chunk: [%i] %lli -> %lli (%i)\n", st_id, offset, offset + size, size);
+#ifdef DEBUG
+ av_log(NULL, AV_LOG_DEBUG, "chunk: %lli -> %lli (%i)\n", offset, offset + size, size);
+#endif
if(size == 0x0FFFFFFF)
size = mov->mdat_size + mov->mdat_offset - offset;
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);
- }
+ av_get_packet(&s->pb, pkt, size);
pkt->stream_index = sc->ffindex;
+
+ // If the keyframes table exists, mark any samples that are in the table as key frames.
+ // If no table exists, treat very sample as a key frame.
+ if (sc->keyframes) {
+ a = 0;
+ b = sc->keyframe_count - 1;
+
+ while (a < b) {
+ m = (a + b + 1) >> 1;
+ if (sc->keyframes[m] > sc->current_sample) {
+ b = m - 1;
+ } else {
+ a = m;
+ }
+ }
+
+ if (sc->keyframes[a] == sc->current_sample)
+ pkt->flags |= PKT_FLAG_KEY;
+ }
+ else
+ pkt->flags |= PKT_FLAG_KEY;
#ifdef DEBUG
/*
- printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size);
+ av_log(NULL, AV_LOG_DEBUG, "Packet (%d, %ld) ", pkt->stream_index, pkt->size);
for(i=0; i<8; i++)
- printf("%02x ", pkt->data[i]);
+ av_log(NULL, AV_LOG_DEBUG, "%02x ", pkt->data[i]);
for(i=0; i<8; i++)
- printf("%c ", (pkt->data[i]) & 0x7F);
- puts("");
+ av_log(NULL, AV_LOG_DEBUG, "%c ", (pkt->data[i]) & 0x7F);
+ av_log(NULL, AV_LOG_DEBUG, "\n");
*/
#endif
mov->next_chunk_offset = offset + size;
+
+ /* find the corresponding dts */
+ if (sc && sc->sample_to_time_index < sc->stts_count && pkt) {
+ unsigned int count;
+ uint64_t dts, pts;
+ unsigned int duration = sc->stts_data[sc->sample_to_time_index].duration;
+ count = sc->stts_data[sc->sample_to_time_index].count;
+ if ((sc->sample_to_time_sample + count) < sc->current_sample) {
+ sc->sample_to_time_sample += count;
+ sc->sample_to_time_time += count*duration;
+ sc->sample_to_time_index ++;
+ duration = sc->stts_data[sc->sample_to_time_index].duration;
+ }
+ dts = sc->sample_to_time_time + (sc->current_sample-1 - sc->sample_to_time_sample) * (int64_t)duration;
+ /* find the corresponding pts */
+ if (sc->sample_to_ctime_index < sc->ctts_count) {
+ int duration = sc->ctts_data[sc->sample_to_ctime_index].duration;
+ int count = sc->ctts_data[sc->sample_to_ctime_index].count;
+
+ if ((sc->sample_to_ctime_sample + count) < sc->current_sample) {
+ sc->sample_to_ctime_sample += count;
+ sc->sample_to_ctime_index ++;
+ duration = sc->ctts_data[sc->sample_to_ctime_index].duration;
+ }
+ pts = dts + duration;
+ }else
+ pts = dts;
+ pkt->pts = pts;
+ pkt->dts = dts;
+#ifdef DEBUG
+ av_log(NULL, AV_LOG_DEBUG, "stream #%d smp #%ld dts = %lld pts = %lld (smp:%ld time:%lld idx:%d ent:%d count:%d dur:%d)\n"
+ , pkt->stream_index, sc->current_sample-1, pkt->dts, pkt->pts
+ , sc->sample_to_time_sample
+ , sc->sample_to_time_time
+ , sc->sample_to_time_index
+ , sc->stts_count
+ , count
+ , duration);
+#endif
+ }
return 0;
}
+#if defined(MOV_SPLIT_CHUNKS) && defined(MOV_SEEK)
+/**
+ * Seek method based on the one described in the Appendix C of QTFileFormat.pdf
+ */
+static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
+{
+ MOVContext* mov = (MOVContext *) s->priv_data;
+ MOVStreamContext* sc;
+ int32_t i, a, b, m;
+ int64_t start_time;
+ int32_t seek_sample, sample;
+ int32_t duration;
+ int32_t count;
+ int32_t chunk;
+ int32_t left_in_chunk;
+ int64_t chunk_file_offset;
+ int64_t sample_file_offset;
+ int32_t first_chunk_sample;
+ int32_t sample_to_chunk_idx;
+ int sample_to_time_index;
+ long sample_to_time_sample = 0;
+ uint64_t sample_to_time_time = 0;
+ int mov_idx;
+
+ // Find the corresponding mov stream
+ for (mov_idx = 0; mov_idx < mov->total_streams; mov_idx++)
+ if (mov->streams[mov_idx]->ffindex == stream_index)
+ break;
+ if (mov_idx == mov->total_streams) {
+ av_log(s, AV_LOG_ERROR, "mov: requested stream was not found in mov streams (idx=%i)\n", stream_index);
+ return -1;
+ }
+ sc = mov->streams[mov_idx];
+
+ // Step 1. Find the edit that contains the requested time (elst)
+ if (sc->edit_count) {
+ // FIXME should handle edit list
+ av_log(s, AV_LOG_ERROR, "mov: does not handle seeking in files that contain edit list (c:%d)\n", sc->edit_count);
+ return -1;
+ }
+
+ // Step 2. Find the corresponding sample using the Time-to-sample atom (stts) */
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Searching for time %li in stream #%i (time_scale=%i)\n", (long)timestamp, mov_idx, sc->time_scale);
+#endif
+ start_time = 0; // FIXME use elst atom
+ sample = 1; // sample are 0 based in table
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Searching for sample_time %li \n", (long)sample_time);
+#endif
+ for (i = 0; i < sc->stts_count; i++) {
+ count = sc->stts_data[i].count;
+ duration = sc->stts_data[i].duration;
+//av_log(s, AV_LOG_DEBUG, "> sample_time %lli \n", (long)sample_time);
+//av_log(s, AV_LOG_DEBUG, "> count=%i duration=%i\n", count, duration);
+ if ((start_time + count*duration) > sample_time) {
+ sample_to_time_time = start_time;
+ sample_to_time_index = i;
+ sample_to_time_sample = sample;
+ sample += (sample_time - start_time) / duration;
+ break;
+ }
+ sample += count;
+ start_time += count * duration;
+ }
+ sample_to_time_time = start_time;
+ sample_to_time_index = i;
+ /* NOTE: despite what qt doc say, the dt value (Display Time in qt vocabulary) computed with the stts atom
+ is a decoding time stamp (dts) not a presentation time stamp. And as usual dts != pts for stream with b frames */
+
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Found time %li at sample #%u\n", (long)sample_time, sample);
+#endif
+ if (sample > sc->sample_count) {
+ av_log(s, AV_LOG_ERROR, "mov: sample pos is too high, unable to seek (req. sample=%i, sample count=%ld)\n", sample, sc->sample_count);
+ return -1;
+ }
+
+ // Step 3. Find the prior sync. sample using the Sync sample atom (stss)
+ if (sc->keyframes) {
+ a = 0;
+ b = sc->keyframe_count - 1;
+ while (a < b) {
+ m = (a + b + 1) >> 1;
+ if (sc->keyframes[m] > sample) {
+ b = m - 1;
+ } else {
+ a = m;
+ }
+#ifdef DEBUG
+ // av_log(s, AV_LOG_DEBUG, "a=%i (%i) b=%i (%i) m=%i (%i) stream #%i\n", a, sc->keyframes[a], b, sc->keyframes[b], m, sc->keyframes[m], mov_idx);
+#endif
+ }
+ // for low latency prob: always use the previous keyframe, just uncomment the next line
+ // if (a) a--;
+ seek_sample = sc->keyframes[a];
+ }
+ else
+ seek_sample = sample; // else all samples are key frames
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Found nearest keyframe at sample #%i \n", seek_sample);
+#endif
+
+ // Step 4. Find the chunk of the sample using the Sample-to-chunk-atom (stsc)
+ for (first_chunk_sample = 1, i = 0; i < (sc->sample_to_chunk_sz - 1); i++) {
+ b = (sc->sample_to_chunk[i + 1].first - sc->sample_to_chunk[i].first) * sc->sample_to_chunk[i].count;
+ if (seek_sample >= first_chunk_sample && seek_sample < (first_chunk_sample + b))
+ break;
+ first_chunk_sample += b;
+ }
+ chunk = sc->sample_to_chunk[i].first + (seek_sample - first_chunk_sample) / sc->sample_to_chunk[i].count;
+ left_in_chunk = sc->sample_to_chunk[i].count - (seek_sample - first_chunk_sample) % sc->sample_to_chunk[i].count;
+ first_chunk_sample += ((seek_sample - first_chunk_sample) / sc->sample_to_chunk[i].count) * sc->sample_to_chunk[i].count;
+ sample_to_chunk_idx = i;
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Sample was found in chunk #%i at sample offset %i (idx %i)\n", chunk, seek_sample - first_chunk_sample, sample_to_chunk_idx);
+#endif
+
+ // Step 5. Find the offset of the chunk using the chunk offset atom
+ if (!sc->chunk_offsets) {
+ av_log(s, AV_LOG_ERROR, "mov: no chunk offset atom, unable to seek\n");
+ return -1;
+ }
+ if (chunk > sc->chunk_count) {
+ av_log(s, AV_LOG_ERROR, "mov: chunk offset atom too short, unable to seek (req. chunk=%i, chunk count=%li)\n", chunk, sc->chunk_count);
+ return -1;
+ }
+ chunk_file_offset = sc->chunk_offsets[chunk - 1];
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Chunk file offset is #%llu \n", chunk_file_offset);
+#endif
+
+ // Step 6. Find the byte offset within the chunk using the sample size atom
+ sample_file_offset = chunk_file_offset;
+ if (sc->sample_size)
+ sample_file_offset += (seek_sample - first_chunk_sample) * sc->sample_size;
+ else {
+ for (i = 0; i < (seek_sample - first_chunk_sample); i++) {
+ sample_file_offset += sc->sample_sizes[first_chunk_sample + i - 1];
+ }
+ }
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Sample file offset is #%llu \n", sample_file_offset);
+#endif
+
+ // Step 6. Update the parser
+ mov->partial = sc;
+ mov->next_chunk_offset = sample_file_offset;
+ // Update current stream state
+ sc->current_sample = seek_sample - 1; // zero based
+ sc->left_in_chunk = left_in_chunk;
+ sc->next_chunk = chunk; // +1 -1 (zero based)
+ sc->sample_to_chunk_index = sample_to_chunk_idx;
+
+ // Update other streams
+ for (i = 0; i<mov->total_streams; i++) {
+ MOVStreamContext *msc;
+ if (i == mov_idx) continue;
+ // Find the nearest 'next' chunk
+ msc = mov->streams[i];
+ a = 0;
+ b = msc->chunk_count - 1;
+ while (a < b) {
+ m = (a + b + 1) >> 1;
+ if (msc->chunk_offsets[m] > chunk_file_offset) {
+ b = m - 1;
+ } else {
+ a = m;
+ }
+#ifdef DEBUG
+/* av_log(s, AV_LOG_DEBUG, "a=%i (%li) b=%i (%li) m=%i (%li) stream #%i\n"
+ , a, (long)msc->chunk_offsets[a], b, (long)msc->chunk_offsets[b], m, (long)msc->chunk_offsets[m], i); */
+#endif
+ }
+ msc->next_chunk = a;
+ if (msc->chunk_offsets[a] < chunk_file_offset && a < (msc->chunk_count-1))
+ msc->next_chunk ++;
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Nearest next chunk for stream #%i is #%i @%lli\n", i, msc->next_chunk+1, msc->chunk_offsets[msc->next_chunk]);
+#endif
+ // Compute sample count and index in the sample_to_chunk table (what a pity)
+ msc->sample_to_chunk_index = 0;
+ msc->current_sample = 0;
+ for(; msc->sample_to_chunk_index < (msc->sample_to_chunk_sz - 1)
+ && msc->sample_to_chunk[msc->sample_to_chunk_index + 1].first <= (1 + msc->next_chunk); msc->sample_to_chunk_index++) {
+ msc->current_sample += (msc->sample_to_chunk[msc->sample_to_chunk_index + 1].first - msc->sample_to_chunk[msc->sample_to_chunk_index].first) \
+ * msc->sample_to_chunk[msc->sample_to_chunk_index].count;
+ }
+ msc->current_sample += (msc->next_chunk - (msc->sample_to_chunk[msc->sample_to_chunk_index].first - 1)) * sc->sample_to_chunk[msc->sample_to_chunk_index].count;
+ msc->left_in_chunk = msc->sample_to_chunk[msc->sample_to_chunk_index].count - 1;
+ // Find corresponding position in stts (used later to compute dts)
+ sample = 0;
+ start_time = 0;
+ for (msc->sample_to_time_index = 0; msc->sample_to_time_index < msc->stts_count; msc->sample_to_time_index++) {
+ count = msc->stts_data[msc->sample_to_time_index].count;
+ duration = msc->stts_data[msc->sample_to_time_index].duration;
+ if ((sample + count - 1) > msc->current_sample) {
+ msc->sample_to_time_time = start_time;
+ msc->sample_to_time_sample = sample;
+ break;
+ }
+ sample += count;
+ start_time += count * duration;
+ }
+ sample = 0;
+ for (msc->sample_to_ctime_index = 0; msc->sample_to_ctime_index < msc->ctts_count; msc->sample_to_ctime_index++) {
+ count = msc->ctts_data[msc->sample_to_ctime_index].count;
+ duration = msc->ctts_data[msc->sample_to_ctime_index].duration;
+ if ((sample + count - 1) > msc->current_sample) {
+ msc->sample_to_ctime_sample = sample;
+ break;
+ }
+ sample += count;
+ }
+#ifdef DEBUG
+ av_log(s, AV_LOG_DEBUG, "Next Sample for stream #%i is #%i @%i\n", i, msc->current_sample + 1, msc->sample_to_chunk_index + 1);
+#endif
+ }
+ return 0;
+}
+#endif
+
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]);
}
static AVInputFormat mov_iformat = {
- "mov",
+ "mov,mp4,m4a,3gp,3g2",
"QuickTime/MPEG4 format",
sizeof(MOVContext),
mov_probe,
mov_read_header,
mov_read_packet,
mov_read_close,
+#if defined(MOV_SPLIT_CHUNKS) && defined(MOV_SEEK)
+ mov_read_seek,
+#endif
};
int mov_init(void)
projects / ffmpeg / blobdiff