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-rw-r--r--libavformat/mov.c678
1 files changed, 554 insertions, 124 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 291c14227c..3e48f15e20 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -6,20 +6,20 @@
* first version by Francois Revol <revol@free.fr>
* seek function by Gael Chardon <gael.dev@4now.net>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -35,6 +35,8 @@
#include "libavutil/mathematics.h"
#include "libavutil/avstring.h"
#include "libavutil/dict.h"
+#include "libavutil/opt.h"
+#include "libavutil/timecode.h"
#include "libavcodec/ac3tab.h"
#include "avformat.h"
#include "internal.h"
@@ -127,6 +129,74 @@ static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
return 0;
}
+static int mov_read_custom_metadata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ char key[1024]={0}, data[1024]={0};
+ int i;
+ AVStream *st;
+ MOVStreamContext *sc;
+
+ if (c->fc->nb_streams < 1)
+ return 0;
+ st = c->fc->streams[c->fc->nb_streams-1];
+ sc = st->priv_data;
+
+ if (atom.size <= 8) return 0;
+
+ for (i = 0; i < 3; i++) { // Parse up to three sub-atoms looking for name and data.
+ int data_size = avio_rb32(pb);
+ int tag = avio_rl32(pb);
+ int str_size = 0, skip_size = 0;
+ char *target = NULL;
+
+ switch (tag) {
+ case MKTAG('n','a','m','e'):
+ avio_rb32(pb); // version/flags
+ str_size = skip_size = data_size - 12;
+ atom.size -= 12;
+ target = key;
+ break;
+ case MKTAG('d','a','t','a'):
+ avio_rb32(pb); // version/flags
+ avio_rb32(pb); // reserved (zero)
+ str_size = skip_size = data_size - 16;
+ atom.size -= 16;
+ target = data;
+ break;
+ default:
+ skip_size = data_size - 8;
+ str_size = 0;
+ break;
+ }
+
+ if (target) {
+ str_size = FFMIN3(sizeof(data)-1, str_size, atom.size);
+ avio_read(pb, target, str_size);
+ target[str_size] = 0;
+ }
+ atom.size -= skip_size;
+
+ // If we didn't read the full data chunk for the sub-atom, skip to the end of it.
+ if (skip_size > str_size) avio_skip(pb, skip_size - str_size);
+ }
+
+ if (*key && *data) {
+ if (strcmp(key, "iTunSMPB") == 0) {
+ int priming, remainder, samples;
+ if(sscanf(data, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
+ if(priming>0 && priming<16384)
+ sc->start_pad = priming;
+ return 1;
+ }
+ }
+ if (strcmp(key, "cdec") == 0) {
+// av_dict_set(&st->metadata, key, data, 0);
+ return 1;
+ }
+ }
+ return 0;
+}
+
static const uint32_t mac_to_unicode[128] = {
0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
@@ -157,7 +227,7 @@ static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
uint8_t t, c = avio_r8(pb);
if (c < 0x80 && p < end)
*p++ = c;
- else
+ else if (p < end)
PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
}
*p = 0;
@@ -206,6 +276,17 @@ static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
return 0;
}
+static int mov_metadata_raw(MOVContext *c, AVIOContext *pb,
+ unsigned len, const char *key)
+{
+ char *value = av_malloc(len + 1);
+ if (!value)
+ return AVERROR(ENOMEM);
+ avio_read(pb, value, len);
+ value[len] = 0;
+ return av_dict_set(&c->fc->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
+}
+
static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
#ifdef MOV_EXPORT_ALL_METADATA
@@ -217,6 +298,9 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
uint32_t data_type = 0, str_size;
int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
+ if (c->itunes_metadata && atom.type == MKTAG('-','-','-','-'))
+ return mov_read_custom_metadata(c, pb, atom);
+
switch (atom.type) {
case MKTAG(0xa9,'n','a','m'): key = "title"; break;
case MKTAG(0xa9,'a','u','t'):
@@ -225,6 +309,8 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
case MKTAG( 'c','p','r','t'):
case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
+ case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
+ case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
case MKTAG(0xa9,'c','m','t'):
case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
case MKTAG(0xa9,'a','l','b'): key = "album"; break;
@@ -235,6 +321,9 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
case MKTAG(0xa9,'t','o','o'):
case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
+ case MKTAG(0xa9,'m','a','k'): key = "make"; break;
+ case MKTAG(0xa9,'m','o','d'): key = "model"; break;
+ case MKTAG(0xa9,'x','y','z'): key = "location"; break;
case MKTAG( 'd','e','s','c'): key = "description";break;
case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
case MKTAG( 't','v','s','h'): key = "show"; break;
@@ -254,6 +343,10 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
parse = mov_metadata_int8_no_padding; break;
case MKTAG( 'p','g','a','p'): key = "gapless_playback";
parse = mov_metadata_int8_no_padding; break;
+ case MKTAG( '@','P','R','M'):
+ return mov_metadata_raw(c, pb, atom.size, "premiere_version");
+ case MKTAG( '@','P','R','Q'):
+ return mov_metadata_raw(c, pb, atom.size, "quicktime_version");
}
if (c->itunes_metadata && atom.size > 8) {
@@ -298,7 +391,7 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (parse)
parse(c, pb, str_size, key);
else {
- if (data_type == 3 || (data_type == 0 && langcode < 0x800)) { // MAC Encoded
+ if (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff))) { // MAC Encoded
mov_read_mac_string(c, pb, str_size, str, sizeof(str));
} else {
avio_read(pb, str, str_size);
@@ -367,6 +460,7 @@ static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
entries >= UINT_MAX / sizeof(*sc->drefs))
return AVERROR_INVALIDDATA;
av_free(sc->drefs);
+ sc->drefs_count = 0;
sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
if (!sc->drefs)
return AVERROR(ENOMEM);
@@ -416,7 +510,7 @@ static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
avio_skip(pb, 16);
for (type = 0; type != -1 && avio_tell(pb) < next; ) {
- if (pb->eof_reached)
+ if(url_feof(pb))
return AVERROR_EOF;
type = avio_rb16(pb);
len = avio_rb16(pb);
@@ -463,6 +557,8 @@ static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
AVStream *st;
uint32_t type;
uint32_t av_unused ctype;
+ int title_size;
+ char *title_str;
if (c->fc->nb_streams < 1) // meta before first trak
return 0;
@@ -492,6 +588,19 @@ static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
avio_rb32(pb); /* component flags */
avio_rb32(pb); /* component flags mask */
+ title_size = atom.size - 24;
+ if (title_size > 0) {
+ title_str = av_malloc(title_size + 1); /* Add null terminator */
+ if (!title_str)
+ return AVERROR(ENOMEM);
+ avio_read(pb, title_str, title_size);
+ title_str[title_size] = 0;
+ if (title_str[0])
+ av_dict_set(&st->metadata, "handler_name", title_str +
+ (!c->isom && title_str[0] == title_size - 1), 0);
+ av_freep(&title_str);
+ }
+
return 0;
}
@@ -585,6 +694,9 @@ static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (atom.size < 16)
return 0;
+ /* skip version and flags */
+ avio_skip(pb, 4);
+
ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
return 0;
@@ -598,7 +710,9 @@ static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
- ff_get_wav_header(pb, st->codec, atom.size);
+ if (ff_get_wav_header(pb, st->codec, atom.size) < 0) {
+ av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
+ }
return 0;
}
@@ -687,13 +801,16 @@ static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return mov_read_default(c, pb, atom);
}
-static void mov_metadata_creation_time(AVDictionary **metadata, time_t time)
+static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
{
char buffer[32];
if (time) {
struct tm *ptm;
- time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
- ptm = gmtime(&time);
+ time_t timet;
+ if(time >= 2082844800)
+ time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
+ timet = time;
+ ptm = gmtime(&timet);
if (!ptm) return;
strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm);
av_dict_set(metadata, "creation_time", buffer, 0);
@@ -707,7 +824,7 @@ static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
int version;
char language[4] = {0};
unsigned lang;
- time_t creation_time;
+ int64_t creation_time;
if (c->fc->nb_streams < 1)
return 0;
@@ -742,7 +859,7 @@ static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
- time_t creation_time;
+ int64_t creation_time;
int version = avio_r8(pb); /* version */
avio_rb24(pb); /* flags */
@@ -759,6 +876,10 @@ static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
av_dlog(c->fc, "time scale = %i\n", c->time_scale);
c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
+ // set the AVCodecContext duration because the duration of individual tracks
+ // may be inaccurate
+ if (c->time_scale > 0)
+ c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
avio_rb32(pb); /* preferred scale */
avio_rb16(pb); /* preferred volume */
@@ -774,31 +895,6 @@ static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
avio_rb32(pb); /* selection duration */
avio_rb32(pb); /* current time */
avio_rb32(pb); /* next track ID */
-
- return 0;
-}
-
-static int mov_read_smi(MOVContext *c, AVIOContext *pb, MOVAtom atom)
-{
- AVStream *st;
-
- if (c->fc->nb_streams < 1)
- return 0;
- st = c->fc->streams[c->fc->nb_streams-1];
-
- if ((uint64_t)atom.size > (1<<30))
- return AVERROR_INVALIDDATA;
-
- // 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 = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!st->codec->extradata)
- return AVERROR(ENOMEM);
- st->codec->extradata_size = 0x5a + atom.size;
- memcpy(st->codec->extradata, "SVQ3", 4); // fake
- avio_read(pb, st->codec->extradata + 0x5a, atom.size);
- av_dlog(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
return 0;
}
@@ -811,7 +907,7 @@ static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
- little_endian = avio_rb16(pb);
+ little_endian = avio_rb16(pb) & 0xFF;
av_dlog(c->fc, "enda %d\n", little_endian);
if (little_endian == 1) {
switch (st->codec->codec_id) {
@@ -869,7 +965,8 @@ static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
}
/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
-static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
+ enum AVCodecID codec_id)
{
AVStream *st;
uint64_t size;
@@ -878,6 +975,10 @@ static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (c->fc->nb_streams < 1) // will happen with jp2 files
return 0;
st= c->fc->streams[c->fc->nb_streams-1];
+
+ if (st->codec->codec_id != codec_id)
+ return 0; /* unexpected codec_id - don't mess with extradata */
+
size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
return AVERROR_INVALIDDATA;
@@ -893,6 +994,32 @@ static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
}
+/* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
+static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
+}
+
+static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
+}
+
+static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
+}
+
+static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
+}
+
+static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
+}
+
static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
@@ -904,9 +1031,12 @@ static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if ((uint64_t)atom.size > (1<<30))
return AVERROR_INVALIDDATA;
- if (st->codec->codec_id == AV_CODEC_ID_QDM2 || st->codec->codec_id == AV_CODEC_ID_QDMC) {
+ if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
+ st->codec->codec_id == AV_CODEC_ID_QDMC ||
+ st->codec->codec_id == AV_CODEC_ID_SPEEX) {
// pass all frma atom to codec, needed at least for QDMC and QDM2
av_free(st->codec->extradata);
+ st->codec->extradata_size = 0;
st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
@@ -946,6 +1076,7 @@ static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return mov_read_default(c, pb, atom);
}
av_free(st->codec->extradata);
+ st->codec->extradata_size = 0;
st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
@@ -971,6 +1102,7 @@ static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
av_free(st->codec->extradata);
+ st->codec->extradata_size = 0;
st->codec->extradata = av_mallocz(atom.size - 7 + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
@@ -999,6 +1131,7 @@ static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return AVERROR_INVALIDDATA;
av_free(st->codec->extradata);
+ st->codec->extradata_size = 0;
st->codec->extradata = av_mallocz(atom.size - 40 + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
@@ -1084,15 +1217,15 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
int dref_id = 1;
MOVAtom a = { AV_RL32("stsd") };
int64_t start_pos = avio_tell(pb);
- uint32_t size = avio_rb32(pb); /* size */
+ int64_t size = avio_rb32(pb); /* size */
uint32_t format = avio_rl32(pb); /* data format */
if (size >= 16) {
avio_rb32(pb); /* reserved */
avio_rb16(pb); /* reserved */
dref_id = avio_rb16(pb);
- } else {
- av_log(c->fc, AV_LOG_ERROR, "invalid size %d in stsd\n", size);
+ }else if (size <= 7){
+ av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
return AVERROR_INVALIDDATA;
}
@@ -1104,14 +1237,13 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
/* Multiple fourcc, we skip JPEG. This is not correct, we should
* export it as a separate AVStream but this needs a few changes
* in the MOV demuxer, patch welcome. */
- multiple_stsd:
av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
avio_skip(pb, size - (avio_tell(pb) - start_pos));
continue;
}
/* we cannot demux concatenated h264 streams because of different extradata */
if (st->codec->codec_tag && st->codec->codec_tag == AV_RL32("avc1"))
- goto multiple_stsd;
+ av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 might not play corrently.\n");
sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
sc->dref_id= dref_id;
@@ -1129,14 +1261,16 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
id = ff_codec_get_id(ff_codec_bmp_tags, format);
if (id > 0)
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- else if (st->codec->codec_type == AVMEDIA_TYPE_DATA){
+ else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
+ (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
+ st->codec->codec_id == AV_CODEC_ID_NONE)){
id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
if (id > 0)
st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
}
}
- av_dlog(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
+ av_dlog(c->fc, "size=%"PRId64" 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);
@@ -1167,8 +1301,11 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
if (len < 31)
avio_skip(pb, 31 - len);
/* codec_tag YV12 triggers an UV swap in rawdec.c */
- if (!memcmp(st->codec->codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25))
+ if (!memcmp(st->codec->codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)){
st->codec->codec_tag=MKTAG('I', '4', '2', '0');
+ st->codec->width &= ~1;
+ st->codec->height &= ~1;
+ }
/* Flash Media Server uses tag H263 with Sorenson Spark */
if (format == MKTAG('H','2','6','3') &&
!memcmp(st->codec->codec_name, "Sorenson H263", 13))
@@ -1187,7 +1324,7 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
(color_depth == 8)) {
/* for palette traversal */
unsigned int color_start, color_count, color_end;
- unsigned char r, g, b;
+ unsigned char a, r, g, b;
if (color_greyscale) {
int color_index, color_dec;
@@ -1197,9 +1334,12 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
color_index = 255;
color_dec = 256 / (color_count - 1);
for (j = 0; j < color_count; j++) {
+ if (id == AV_CODEC_ID_CINEPAK){
+ r = g = b = color_count - 1 - color_index;
+ }else
r = g = b = color_index;
sc->palette[j] =
- (r << 16) | (g << 8) | (b);
+ (0xFFU << 24) | (r << 16) | (g << 8) | (b);
color_index -= color_dec;
if (color_index < 0)
color_index = 0;
@@ -1220,7 +1360,7 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
g = color_table[j * 3 + 1];
b = color_table[j * 3 + 2];
sc->palette[j] =
- (r << 16) | (g << 8) | (b);
+ (0xFFU << 24) | (r << 16) | (g << 8) | (b);
}
} else {
/* load the palette from the file */
@@ -1230,10 +1370,9 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
if ((color_start <= 255) &&
(color_end <= 255)) {
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 */
- avio_r8(pb);
+ /* each A, R, G, or B component is 16 bits;
+ * only use the top 8 bits */
+ a = avio_r8(pb);
avio_r8(pb);
r = avio_r8(pb);
avio_r8(pb);
@@ -1242,7 +1381,7 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
b = avio_r8(pb);
avio_r8(pb);
sc->palette[j] =
- (r << 16) | (g << 8) | (b);
+ (a << 24 ) | (r << 16) | (g << 8) | (b);
}
}
}
@@ -1251,6 +1390,7 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
} else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
int bits_per_sample, flags;
uint16_t version = avio_rb16(pb);
+ AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
st->codec->codec_id = id;
avio_rb16(pb); /* revision level */
@@ -1267,7 +1407,8 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
//Read QT version 1 fields. In version 0 these do not exist.
av_dlog(c->fc, "version =%d, isom =%d\n",version,c->isom);
- if (!c->isom) {
+ if (!c->isom ||
+ (compatible_brands && strstr(compatible_brands->value, "qt "))) {
if (version==1) {
sc->samples_per_frame = avio_rb32(pb);
avio_rb32(pb); /* bytes per packet */
@@ -1338,7 +1479,20 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
st->codec->width = sc->width;
st->codec->height = sc->height;
} else {
- /* other codec type, just skip (rtp, mp4s, tmcd ...) */
+ if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
+ MOVStreamContext *tmcd_ctx = st->priv_data;
+ int val;
+ avio_rb32(pb); /* reserved */
+ val = avio_rb32(pb); /* flags */
+ tmcd_ctx->tmcd_flags = val;
+ if (val & 1)
+ st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
+ avio_rb32(pb); /* time scale */
+ avio_rb32(pb); /* frame duration */
+ st->codec->time_base.den = avio_r8(pb); /* number of frame */
+ st->codec->time_base.num = 1;
+ }
+ /* other codec type, just skip (rtp, mp4s, ...) */
avio_skip(pb, size - (avio_tell(pb) - start_pos));
}
/* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
@@ -1404,6 +1558,12 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
st->codec->sample_rate = AV_RB32(st->codec->extradata+32);
}
break;
+ case AV_CODEC_ID_AC3:
+ st->need_parsing = AVSTREAM_PARSE_FULL;
+ break;
+ case AV_CODEC_ID_MPEG1VIDEO:
+ st->need_parsing = AVSTREAM_PARSE_FULL;
+ break;
case AV_CODEC_ID_VC1:
st->need_parsing = AVSTREAM_PARSE_FULL;
break;
@@ -1560,6 +1720,7 @@ static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sample_size = avio_rb32(pb);
if (!sc->sample_size) /* do not overwrite value computed in stsd */
sc->sample_size = sample_size;
+ sc->alt_sample_size = sample_size;
field_size = 32;
} else {
sample_size = 0;
@@ -1637,10 +1798,8 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
av_dlog(c->fc, "track[%i].stts.entries = %i\n",
c->fc->nb_streams-1, entries);
- if (!entries)
- return 0;
if (entries >= UINT_MAX / sizeof(*sc->stts_data))
- return AVERROR(EINVAL);
+ return -1;
sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
if (!sc->stts_data)
@@ -1652,6 +1811,11 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sample_count=avio_rb32(pb);
sample_duration = avio_rb32(pb);
+ /* sample_duration < 0 is invalid based on the spec */
+ if (sample_duration < 0) {
+ av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta in STTS %d\n", sample_duration);
+ sample_duration = 1;
+ }
sc->stts_data[i].count= sample_count;
sc->stts_data[i].duration= sample_duration;
@@ -1705,7 +1869,18 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->ctts_data[i].count = count;
sc->ctts_data[i].duration= duration;
- if (duration < 0)
+
+ av_dlog(c->fc, "count=%d, duration=%d\n",
+ count, duration);
+
+ if (FFABS(duration) > (1<<28) && i+2<entries) {
+ av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
+ av_freep(&sc->ctts_data);
+ sc->ctts_count = 0;
+ return 0;
+ }
+
+ if (duration < 0 && i+2<entries)
sc->dts_shift = FFMAX(sc->dts_shift, -duration);
}
@@ -1773,12 +1948,13 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
AVIndexEntry *mem;
/* adjust first dts according to edit list */
- if (sc->time_offset && mov->time_scale > 0) {
- if (sc->time_offset < 0)
- sc->time_offset = av_rescale(sc->time_offset, sc->time_scale, mov->time_scale);
+ if ((sc->empty_duration || sc->start_time) && mov->time_scale > 0) {
+ if (sc->empty_duration)
+ sc->empty_duration = av_rescale(sc->empty_duration, sc->time_scale, mov->time_scale);
+ sc->time_offset = sc->start_time - sc->empty_duration;
current_dts = -sc->time_offset;
- if (sc->ctts_data && sc->stts_data && sc->stts_data[0].duration &&
- sc->ctts_data[0].duration / sc->stts_data[0].duration > 16) {
+ if (sc->ctts_count>0 && sc->stts_count>0 &&
+ sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
/* more than 16 frames delay, dts are likely wrong
this happens with files created by iMovie */
sc->wrong_dts = 1;
@@ -1796,11 +1972,11 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
unsigned int rap_group_index = 0;
unsigned int rap_group_sample = 0;
int rap_group_present = sc->rap_group_count && sc->rap_group;
- int key_off = (sc->keyframes && sc->keyframes[0] > 0) || (sc->stps_data && sc->stps_data[0] > 0);
+ int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
current_dts -= sc->dts_shift;
- if (!sc->sample_count)
+ if (!sc->sample_count || st->nb_index_entries)
return;
if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
return;
@@ -1841,7 +2017,7 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
}
if (keyframe)
distance = 0;
- sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
+ sample_size = sc->alt_sample_size > 0 ? sc->alt_sample_size : sc->sample_sizes[current_sample];
if (sc->pseudo_stream_id == -1 ||
sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
@@ -1956,14 +2132,14 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
}
}
-static int mov_open_dref(AVIOContext **pb, char *src, MOVDref *ref,
- AVIOInterruptCB *int_cb)
+static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
+ AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
{
/* try relative path, we do not try the absolute because it can leak information about our
system to an attacker */
if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
char filename[1024];
- char *src_path;
+ const char *src_path;
int i, l;
/* find a source dir */
@@ -1995,11 +2171,26 @@ static int mov_open_dref(AVIOContext **pb, char *src, MOVDref *ref,
if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
return 0;
}
+ } else if (use_absolute_path) {
+ av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
+ "this is a possible security issue\n");
+ if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
+ return 0;
}
return AVERROR(ENOENT);
}
+static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
+{
+ if (sc->time_scale <= 0) {
+ av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
+ sc->time_scale = c->time_scale;
+ if (sc->time_scale <= 0)
+ sc->time_scale = 1;
+ }
+}
+
static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
@@ -2027,12 +2218,7 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
}
- if (sc->time_scale <= 0) {
- av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", st->index);
- sc->time_scale = c->time_scale;
- if (sc->time_scale <= 0)
- sc->time_scale = 1;
- }
+ fix_timescale(c, sc);
avpriv_set_pts_info(st, 64, 1, sc->time_scale);
@@ -2040,14 +2226,17 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
MOVDref *dref = &sc->drefs[sc->dref_id - 1];
- if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback) < 0)
+ if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
+ c->use_absolute_path, c->fc) < 0)
av_log(c->fc, AV_LOG_ERROR,
"stream %d, error opening alias: path='%s', dir='%s', "
"filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
st->index, dref->path, dref->dir, dref->filename,
dref->volume, dref->nlvl_from, dref->nlvl_to);
- } else
+ } else {
sc->pb = c->fc->pb;
+ sc->pb_is_copied = 1;
+ }
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
if (!st->sample_aspect_ratio.num &&
@@ -2056,9 +2245,21 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
((double)st->codec->width * sc->height), INT_MAX);
}
- if (st->duration != AV_NOPTS_VALUE)
+ if (st->duration > 0)
av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
sc->time_scale*st->nb_frames, st->duration, INT_MAX);
+
+#if FF_API_R_FRAME_RATE
+ if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
+ av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
+ sc->time_scale, sc->stts_data[0].duration, INT_MAX);
+#endif
+ }
+
+ // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
+ if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
+ st->codec->codec_tag != MKTAG('a', 'v', 'c', '1')) {
+ ff_generate_avci_extradata(st);
}
switch (st->codec->codec_id) {
@@ -2170,6 +2371,21 @@ static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->width = width >> 16;
sc->height = height >> 16;
+ //Assign clockwise rotate values based on transform matrix so that
+ //we can compensate for iPhone orientation during capture.
+
+ if (display_matrix[1][0] == -65536 && display_matrix[0][1] == 65536) {
+ av_dict_set(&st->metadata, "rotate", "90", 0);
+ }
+
+ if (display_matrix[0][0] == -65536 && display_matrix[1][1] == -65536) {
+ av_dict_set(&st->metadata, "rotate", "180", 0);
+ }
+
+ if (display_matrix[1][0] == 65536 && display_matrix[0][1] == -65536) {
+ av_dict_set(&st->metadata, "rotate", "270", 0);
+ }
+
// transform the display width/height according to the matrix
// skip this if the display matrix is the default identity matrix
// or if it is rotating the picture, ex iPhone 3GS
@@ -2246,6 +2462,9 @@ static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
trex = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
if (!trex)
return AVERROR(ENOMEM);
+
+ c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
+
c->trex_data = trex;
trex = &c->trex_data[c->trex_count++];
avio_r8(pb); /* version */
@@ -2394,7 +2613,7 @@ static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (avio_rl32(pb) != MKTAG('d','c','o','m'))
return AVERROR_INVALIDDATA;
if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
- av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !");
+ av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
return AVERROR_INVALIDDATA;
}
avio_rb32(pb); /* cmvd atom */
@@ -2433,9 +2652,10 @@ free_and_return:
static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
MOVStreamContext *sc;
- int i, edit_count, version;
+ int i, edit_count, version, edit_start_index = 0;
+ int unsupported = 0;
- if (c->fc->nb_streams < 1)
+ if (c->fc->nb_streams < 1 || c->ignore_editlist)
return 0;
sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
@@ -2446,9 +2666,11 @@ static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if ((uint64_t)edit_count*12+8 > atom.size)
return AVERROR_INVALIDDATA;
+ av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
for (i=0; i<edit_count; i++){
int64_t time;
int64_t duration;
+ int rate;
if (version == 1) {
duration = avio_rb64(pb);
time = avio_rb64(pb);
@@ -2456,22 +2678,43 @@ static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
duration = avio_rb32(pb); /* segment duration */
time = (int32_t)avio_rb32(pb); /* media time */
}
- avio_rb32(pb); /* Media rate */
- if (i == 0 && time >= -1) {
- sc->time_offset = time != -1 ? time : -duration;
- }
+ rate = avio_rb32(pb);
+ if (i == 0 && time == -1) {
+ sc->empty_duration = duration;
+ edit_start_index = 1;
+ } else if (i == edit_start_index && time >= 0)
+ sc->start_time = time;
+ else
+ unsupported = 1;
+
+ av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
+ duration, time, rate / 65536.0);
}
- if (edit_count > 1)
+ if (unsupported)
av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
"a/v desync might occur, patch welcome\n");
- av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
+ return 0;
+}
+
+static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ MOVStreamContext *sc;
+
+ if (c->fc->nb_streams < 1)
+ return AVERROR_INVALIDDATA;
+ sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
+ sc->timecode_track = avio_rb32(pb);
return 0;
}
static const MOVParseTableEntry mov_default_parse_table[] = {
-{ MKTAG('a','v','s','s'), mov_read_extradata },
+{ MKTAG('A','C','L','R'), mov_read_avid },
+{ MKTAG('A','P','R','G'), mov_read_avid },
+{ MKTAG('A','A','L','P'), mov_read_avid },
+{ MKTAG('A','R','E','S'), mov_read_avid },
+{ MKTAG('a','v','s','s'), mov_read_avss },
{ MKTAG('c','h','p','l'), mov_read_chpl },
{ MKTAG('c','o','6','4'), mov_read_stco },
{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
@@ -2485,7 +2728,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('g','l','b','l'), mov_read_glbl },
{ MKTAG('h','d','l','r'), mov_read_hdlr },
{ MKTAG('i','l','s','t'), mov_read_ilst },
-{ MKTAG('j','p','2','h'), mov_read_extradata },
+{ MKTAG('j','p','2','h'), mov_read_jp2h },
{ MKTAG('m','d','a','t'), mov_read_mdat },
{ MKTAG('m','d','h','d'), mov_read_mdhd },
{ MKTAG('m','d','i','a'), mov_read_default },
@@ -2495,8 +2738,8 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('m','o','o','v'), mov_read_moov },
{ MKTAG('m','v','e','x'), mov_read_default },
{ MKTAG('m','v','h','d'), mov_read_mvhd },
-{ MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
-{ MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
+{ MKTAG('S','M','I',' '), mov_read_svq3 },
+{ MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
{ MKTAG('a','v','c','C'), mov_read_glbl },
{ MKTAG('p','a','s','p'), mov_read_pasp },
{ MKTAG('s','t','b','l'), mov_read_default },
@@ -2514,6 +2757,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('t','r','a','k'), mov_read_trak },
{ MKTAG('t','r','a','f'), mov_read_default },
{ MKTAG('t','r','e','f'), mov_read_default },
+{ MKTAG('t','m','c','d'), mov_read_tmcd },
{ MKTAG('c','h','a','p'), mov_read_chap },
{ MKTAG('t','r','e','x'), mov_read_trex },
{ MKTAG('t','r','u','n'), mov_read_trun },
@@ -2539,25 +2783,33 @@ static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (atom.size < 0)
atom.size = INT64_MAX;
- while (total_size + 8 < atom.size && !pb->eof_reached) {
+ while (total_size + 8 <= atom.size && !url_feof(pb)) {
int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
a.size = atom.size;
a.type=0;
if (atom.size >= 8) {
a.size = avio_rb32(pb);
a.type = avio_rl32(pb);
+ if (atom.type != MKTAG('r','o','o','t') &&
+ atom.type != MKTAG('m','o','o','v'))
+ {
+ if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
+ {
+ av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
+ avio_skip(pb, -8);
+ return 0;
+ }
+ }
+ total_size += 8;
+ if (a.size == 1) { /* 64 bit extended size */
+ a.size = avio_rb64(pb) - 8;
+ total_size += 8;
+ }
}
av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
- total_size += 8;
- if (a.size == 1) { /* 64 bit extended size */
- a.size = avio_rb64(pb) - 8;
- total_size += 8;
- }
if (a.size == 0) {
- a.size = atom.size - total_size;
- if (a.size <= 8)
- break;
+ a.size = atom.size - total_size + 8;
}
a.size -= 8;
if (a.size < 0)
@@ -2593,6 +2845,10 @@ static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
left = a.size - avio_tell(pb) + start_pos;
if (left > 0) /* skip garbage at atom end */
avio_skip(pb, left);
+ else if(left < 0) {
+ av_log(c->fc, AV_LOG_DEBUG, "undoing overread of %"PRId64" in '%.4s'\n", -left, (char*)&a.type);
+ avio_seek(pb, left, SEEK_CUR);
+ }
}
total_size += a.size;
@@ -2606,46 +2862,81 @@ static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_probe(AVProbeData *p)
{
- unsigned int offset;
+ int64_t offset;
uint32_t tag;
int score = 0;
+ int moov_offset = -1;
/* check file header */
offset = 0;
for (;;) {
/* ignore invalid offset */
if ((offset + 8) > (unsigned int)p->buf_size)
- return score;
+ break;
tag = AV_RL32(p->buf + offset + 4);
switch(tag) {
/* check for obvious tags */
- case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
case MKTAG('m','o','o','v'):
+ moov_offset = offset + 4;
+ case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
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 */
case MKTAG('f','t','y','p'):
- return AVPROBE_SCORE_MAX;
+ if (AV_RB32(p->buf+offset) < 8 &&
+ (AV_RB32(p->buf+offset) != 1 ||
+ offset + 12 > (unsigned int)p->buf_size ||
+ AV_RB64(p->buf+offset + 8) == 0)) {
+ score = FFMAX(score, AVPROBE_SCORE_MAX - 50);
+ } else {
+ score = AVPROBE_SCORE_MAX;
+ }
+ offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
+ break;
/* those are more common words, so rate then a bit less */
case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
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;
+ score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
+ offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
+ break;
case MKTAG(0x82,0x82,0x7f,0x7d):
case MKTAG('s','k','i','p'):
case MKTAG('u','u','i','d'):
case MKTAG('p','r','f','l'):
- offset = AV_RB32(p->buf+offset) + offset;
/* if we only find those cause probedata is too small at least rate them */
- score = AVPROBE_SCORE_MAX - 50;
+ score = FFMAX(score, AVPROBE_SCORE_MAX - 50);
+ offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
break;
default:
- /* unrecognized tag */
- return score;
+ offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
}
}
+ if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
+ /* moov atom in the header - we should make sure that this is not a
+ * MOV-packed MPEG-PS */
+ offset = moov_offset;
+
+ while(offset < (p->buf_size - 16)){ /* Sufficient space */
+ /* We found an actual hdlr atom */
+ if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
+ AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
+ AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
+ av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
+ /* We found a media handler reference atom describing an
+ * MPEG-PS-in-MOV, return a
+ * low score to force expanding the probe window until
+ * mpegps_probe finds what it needs */
+ return 5;
+ }else
+ /* Keep looking */
+ offset+=2;
+ }
+ }
+
+ return score;
}
// must be done after parsing all trak because there's no order requirement
@@ -2707,7 +2998,7 @@ static void mov_read_chapters(AVFormatContext *s)
if (len == 1 || len == 2)
title[len] = 0;
else
- avio_get_str(sc->pb, len - 2, title + 2, title_len - 2);
+ avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
}
}
@@ -2718,6 +3009,49 @@ finish:
avio_seek(sc->pb, cur_pos, SEEK_SET);
}
+static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
+ uint32_t value, int flags)
+{
+ AVTimecode tc;
+ char buf[AV_TIMECODE_STR_SIZE];
+ AVRational rate = {st->codec->time_base.den,
+ st->codec->time_base.num};
+ int ret = av_timecode_init(&tc, rate, flags, 0, s);
+ if (ret < 0)
+ return ret;
+ av_dict_set(&st->metadata, "timecode",
+ av_timecode_make_string(&tc, buf, value), 0);
+ return 0;
+}
+
+static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
+{
+ MOVStreamContext *sc = st->priv_data;
+ int flags = 0;
+ int64_t cur_pos = avio_tell(sc->pb);
+ uint32_t value;
+
+ if (!st->nb_index_entries)
+ return -1;
+
+ avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
+ value = avio_rb32(s->pb);
+
+ if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
+ if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
+ if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
+
+ /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
+ * not the case) and thus assume "frame number format" instead of QT one.
+ * No sample with tmcd track can be found with a QT timecode at the moment,
+ * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
+ * format). */
+ parse_timecode_in_framenum_format(s, st, value, flags);
+
+ avio_seek(sc->pb, cur_pos, SEEK_SET);
+ return 0;
+}
+
static int mov_read_close(AVFormatContext *s)
{
MOVContext *mov = s->priv_data;
@@ -2733,8 +3067,15 @@ static int mov_read_close(AVFormatContext *s)
av_freep(&sc->drefs[j].dir);
}
av_freep(&sc->drefs);
- if (sc->pb && sc->pb != s->pb)
+ if (!sc->pb_is_copied)
avio_close(sc->pb);
+ sc->pb = NULL;
+ av_freep(&sc->chunk_offsets);
+ av_freep(&sc->keyframes);
+ av_freep(&sc->sample_sizes);
+ av_freep(&sc->stps_data);
+ av_freep(&sc->stsc_data);
+ av_freep(&sc->stts_data);
}
if (mov->dv_demux) {
@@ -2751,11 +3092,45 @@ static int mov_read_close(AVFormatContext *s)
return 0;
}
+static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
+{
+ int i;
+
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st = s->streams[i];
+ MOVStreamContext *sc = st->priv_data;
+
+ if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
+ sc->timecode_track == tmcd_id)
+ return 1;
+ }
+ return 0;
+}
+
+/* look for a tmcd track not referenced by any video track, and export it globally */
+static void export_orphan_timecode(AVFormatContext *s)
+{
+ int i;
+
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st = s->streams[i];
+
+ if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
+ !tmcd_is_referenced(s, i + 1)) {
+ AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
+ if (tcr) {
+ av_dict_set(&s->metadata, "timecode", tcr->value, 0);
+ break;
+ }
+ }
+ }
+}
+
static int mov_read_header(AVFormatContext *s)
{
MOVContext *mov = s->priv_data;
AVIOContext *pb = s->pb;
- int err;
+ int i, j, err;
MOVAtom atom = { AV_RL32("root") };
mov->fc = s;
@@ -2778,11 +3153,45 @@ static int mov_read_header(AVFormatContext *s)
}
av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
- if (pb->seekable && mov->chapter_track > 0)
- mov_read_chapters(s);
+ if (pb->seekable) {
+ if (mov->chapter_track > 0)
+ mov_read_chapters(s);
+ for (i = 0; i < s->nb_streams; i++)
+ if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
+ mov_read_timecode_track(s, s->streams[i]);
+ }
+
+ /* copy timecode metadata from tmcd tracks to the related video streams */
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st = s->streams[i];
+ MOVStreamContext *sc = st->priv_data;
+ if (sc->timecode_track > 0) {
+ AVDictionaryEntry *tcr;
+ int tmcd_st_id = -1;
+
+ for (j = 0; j < s->nb_streams; j++)
+ if (s->streams[j]->id == sc->timecode_track)
+ tmcd_st_id = j;
+
+ if (tmcd_st_id < 0 || tmcd_st_id == i)
+ continue;
+ tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
+ if (tcr)
+ av_dict_set(&st->metadata, "timecode", tcr->value, 0);
+ }
+ }
+ export_orphan_timecode(s);
+
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st = s->streams[i];
+ MOVStreamContext *sc = st->priv_data;
+ fix_timescale(mov, sc);
+ if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
+ st->skip_samples = sc->start_pad;
+ }
+ }
if (mov->trex_data) {
- int i;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MOVStreamContext *sc = st->priv_data;
@@ -2827,6 +3236,7 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
AVIndexEntry *sample;
AVStream *st = NULL;
int ret;
+ mov->fc = s;
retry:
sample = mov_find_next_sample(s, &st);
if (!sample) {
@@ -2836,7 +3246,7 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
mov->next_root_atom = 0;
if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
- s->pb->eof_reached)
+ url_feof(s->pb))
return AVERROR_EOF;
av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
goto retry;
@@ -2867,7 +3277,7 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
}
#if CONFIG_DV_DEMUXER
if (mov->dv_demux && sc->dv_audio_container) {
- avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
+ avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
av_free(pkt->data);
pkt->size = 0;
ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
@@ -2944,8 +3354,6 @@ static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
if (stream_index >= s->nb_streams)
return AVERROR_INVALIDDATA;
- if (sample_time < 0)
- sample_time = 0;
st = s->streams[stream_index];
sample = mov_seek_stream(s, st, sample_time, flags);
@@ -2956,7 +3364,10 @@ static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
seek_timestamp = st->index_entries[sample].timestamp;
for (i = 0; i < s->nb_streams; i++) {
+ MOVStreamContext *sc = s->streams[i]->priv_data;
st = s->streams[i];
+ st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
+
if (stream_index == i)
continue;
@@ -2966,6 +3377,23 @@ static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
return 0;
}
+static const AVOption options[] = {
+ {"use_absolute_path",
+ "allow using absolute path when opening alias, this is a possible security issue",
+ offsetof(MOVContext, use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
+ 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
+ {"ignore_editlist", "", offsetof(MOVContext, ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
+ 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
+ {NULL}
+};
+
+static const AVClass class = {
+ .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
AVInputFormat ff_mov_demuxer = {
.name = "mov,mp4,m4a,3gp,3g2,mj2",
.long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
@@ -2975,4 +3403,6 @@ AVInputFormat ff_mov_demuxer = {
.read_packet = mov_read_packet,
.read_close = mov_read_close,
.read_seek = mov_read_seek,
+ .priv_class = &class,
+ .flags = AVFMT_NO_BYTE_SEEK,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 17:47:23 +0000