* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+//#define DEBUG
+//#define DEBUG_SEEK
+
+#include "libavutil/intreadwrite.h"
+#include "libavutil/bswap.h"
#include "avformat.h"
#include "avi.h"
#include "dv.h"
#undef NDEBUG
#include <assert.h>
-//#define DEBUG
-//#define DEBUG_SEEK
-
typedef struct AVIStream {
int64_t frame_offset; /* current frame (video) or byte (audio) counter
(used to compute the pts) */
#ifdef DEBUG
static void print_tag(const char *str, unsigned int tag, int size)
{
- printf("%s: tag=%c%c%c%c size=0x%x\n",
+ dprintf(NULL, "%s: tag=%c%c%c%c size=0x%x\n",
str, tag & 0xff,
(tag >> 8) & 0xff,
(tag >> 16) & 0xff,
}
#endif
-static int get_riff(AVIContext *avi, ByteIOContext *pb)
+static int get_riff(AVFormatContext *s, ByteIOContext *pb)
{
+ AVIContext *avi = s->priv_data;
char header[8];
int i;
return -1;
if(header[7] == 0x19)
- av_log(NULL, AV_LOG_INFO, "This file has been generated by a totally broken muxer.\n");
+ av_log(s, AV_LOG_INFO, "This file has been generated by a totally broken muxer.\n");
return 0;
}
#ifdef DEBUG_SEEK
av_log(s, AV_LOG_ERROR, "pos:%"PRId64", len:%X\n", pos, len);
#endif
+ if(url_feof(pb))
+ return -1;
+
if(last_pos == pos || pos == base - 8)
avi->non_interleaved= 1;
- else
+ if(last_pos != pos)
av_add_index_entry(st, pos, ast->cum_len / FFMAX(1, ast->sample_size), len, 0, key ? AVINDEX_KEYFRAME : 0);
if(ast->sample_size)
offset = get_le64(pb);
get_le32(pb); /* size */
duration = get_le32(pb);
+
+ if(url_feof(pb))
+ return -1;
+
pos = url_ftell(pb);
url_fseek(pb, offset+8, SEEK_SET);
}
}
-static int avi_read_tag(ByteIOContext *pb, char *buf, int maxlen, unsigned int size)
+static int avi_read_tag(AVFormatContext *s, const char *key, unsigned int size)
{
+ ByteIOContext *pb = s->pb;
+ uint8_t value[1024];
+
int64_t i = url_ftell(pb);
size += (size & 1);
- get_strz(pb, buf, maxlen);
+ get_strz(pb, value, sizeof(value));
url_fseek(pb, i+size, SEEK_SET);
- return 0;
+
+ return av_metadata_set(&s->metadata, key, value);
}
static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
AVIContext *avi = s->priv_data;
ByteIOContext *pb = s->pb;
- uint32_t tag, tag1, handler;
+ unsigned int tag, tag1, handler;
int codec_type, stream_index, frame_period, bit_rate;
unsigned int size, nb_frames;
int i;
AVStream *st;
AVIStream *ast = NULL;
- char str_track[4];
int avih_width=0, avih_height=0;
int amv_file_format=0;
avi->stream_index= -1;
- if (get_riff(avi, pb) < 0)
+ if (get_riff(s, pb) < 0)
return -1;
avi->fsize = url_fsize(pb);
if(avi->fsize<=0)
- avi->fsize= avi->riff_end;
+ avi->fsize= avi->riff_end == 8 ? INT64_MAX : avi->riff_end;
/* first list tag */
stream_index = -1;
if(size) avi->movi_end = avi->movi_list + size + (size & 1);
else avi->movi_end = url_fsize(pb);
#ifdef DEBUG
- printf("movi end=%"PRIx64"\n", avi->movi_end);
+ dprintf(NULL, "movi end=%"PRIx64"\n", avi->movi_end);
#endif
goto end_of_header;
}
av_freep(&s->streams[0]->codec->extradata);
av_freep(&s->streams[0]);
s->nb_streams = 0;
- if (ENABLE_DV_DEMUXER) {
+ if (CONFIG_DV_DEMUXER) {
avi->dv_demux = dv_init_demux(s);
if (!avi->dv_demux)
goto fail;
get_le32(pb); /* quality */
ast->sample_size = get_le32(pb); /* sample ssize */
ast->cum_len *= FFMAX(1, ast->sample_size);
-// av_log(NULL, AV_LOG_DEBUG, "%d %d %d %d\n", ast->rate, ast->scale, ast->start, ast->sample_size);
+// av_log(s, AV_LOG_DEBUG, "%d %d %d %d\n", ast->rate, ast->scale, ast->start, ast->sample_size);
switch(tag1) {
case MKTAG('v', 'i', 'd', 's'):
}
get_le32(pb); /* size */
st->codec->width = get_le32(pb);
- st->codec->height = get_le32(pb);
+ st->codec->height = (int32_t)get_le32(pb);
get_le16(pb); /* panes */
st->codec->bits_per_coded_sample= get_le16(pb); /* depth */
tag1 = get_le32(pb);
#endif
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_tag = tag1;
- st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1);
+ st->codec->codec_id = ff_codec_get_id(ff_codec_bmp_tags, tag1);
st->need_parsing = AVSTREAM_PARSE_HEADERS; // This is needed to get the pict type which is necessary for generating correct pts.
+
+ if(st->codec->codec_tag==0 && st->codec->height > 0 && st->codec->extradata_size < 1U<<30){
+ st->codec->extradata_size+= 9;
+ st->codec->extradata= av_realloc(st->codec->extradata, st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ if(st->codec->extradata)
+ memcpy(st->codec->extradata + st->codec->extradata_size - 9, "BottomUp", 9);
+ }
+ st->codec->height= FFABS(st->codec->height);
+
// url_fskip(pb, size - 5 * 4);
break;
case CODEC_TYPE_AUDIO:
- get_wav_header(pb, st->codec, size);
+ ff_get_wav_header(pb, st->codec, size);
if(ast->sample_size && st->codec->block_align && ast->sample_size != st->codec->block_align){
av_log(s, AV_LOG_WARNING, "sample size (%d) != block align (%d)\n", ast->sample_size, st->codec->block_align);
ast->sample_size= st->codec->block_align;
st->need_parsing = AVSTREAM_PARSE_NONE;
/* AVI files with Xan DPCM audio (wrongly) declare PCM
* audio in the header but have Axan as stream_code_tag. */
- if (st->codec->stream_codec_tag == ff_get_fourcc("Axan")){
+ if (st->codec->stream_codec_tag == AV_RL32("Axan")){
st->codec->codec_id = CODEC_ID_XAN_DPCM;
st->codec->codec_tag = 0;
}
url_fseek(pb, size, SEEK_CUR);
break;
case MKTAG('I', 'N', 'A', 'M'):
- avi_read_tag(pb, s->title, sizeof(s->title), size);
+ avi_read_tag(s, "Title", size);
break;
case MKTAG('I', 'A', 'R', 'T'):
- avi_read_tag(pb, s->author, sizeof(s->author), size);
+ avi_read_tag(s, "Artist", size);
break;
case MKTAG('I', 'C', 'O', 'P'):
- avi_read_tag(pb, s->copyright, sizeof(s->copyright), size);
+ avi_read_tag(s, "Copyright", size);
break;
case MKTAG('I', 'C', 'M', 'T'):
- avi_read_tag(pb, s->comment, sizeof(s->comment), size);
+ avi_read_tag(s, "Comment", size);
break;
case MKTAG('I', 'G', 'N', 'R'):
- avi_read_tag(pb, s->genre, sizeof(s->genre), size);
+ avi_read_tag(s, "Genre", size);
break;
case MKTAG('I', 'P', 'R', 'D'):
- avi_read_tag(pb, s->album, sizeof(s->album), size);
+ avi_read_tag(s, "Album", size);
break;
case MKTAG('I', 'P', 'R', 'T'):
- avi_read_tag(pb, str_track, sizeof(str_track), size);
- sscanf(str_track, "%d", &s->track);
+ avi_read_tag(s, "Track", size);
break;
default:
if(size > 1000000){
{
AVIContext *avi = s->priv_data;
ByteIOContext *pb = s->pb;
- int n, d[8], size;
+ int n, d[8];
+ unsigned int size;
int64_t i, sync;
void* dstr;
- if (ENABLE_DV_DEMUXER && avi->dv_demux) {
- size = dv_get_packet(avi->dv_demux, pkt);
+ if (CONFIG_DV_DEMUXER && avi->dv_demux) {
+ int size = dv_get_packet(avi->dv_demux, pkt);
if (size >= 0)
return size;
}
ts /= ast->sample_size;
ts= av_rescale(ts, AV_TIME_BASE * (int64_t)st->time_base.num, st->time_base.den);
-// av_log(NULL, AV_LOG_DEBUG, "%"PRId64" %d/%d %"PRId64"\n", ts, st->time_base.num, st->time_base.den, ast->frame_offset);
+// av_log(s, AV_LOG_DEBUG, "%"PRId64" %d/%d %"PRId64"\n", ts, st->time_base.num, st->time_base.den, ast->frame_offset);
if(ts < best_ts && st->nb_index_entries){
best_ts= ts;
best_st= st;
else{
i= av_index_search_timestamp(best_st, best_ts, AVSEEK_FLAG_ANY);
if(i>=0)
- best_ast->frame_offset= best_st->index_entries[i].timestamp;
+ best_ast->frame_offset= best_st->index_entries[i].timestamp
+ * FFMAX(1, best_ast->sample_size);
}
-// av_log(NULL, AV_LOG_DEBUG, "%d\n", i);
+// av_log(s, AV_LOG_DEBUG, "%d\n", i);
if(i>=0){
int64_t pos= best_st->index_entries[i].pos;
pos += best_ast->packet_size - best_ast->remaining;
url_fseek(s->pb, pos + 8, SEEK_SET);
-// av_log(NULL, AV_LOG_DEBUG, "pos=%"PRId64"\n", pos);
+// av_log(s, AV_LOG_DEBUG, "pos=%"PRId64"\n", pos);
assert(best_ast->remaining <= best_ast->packet_size);
if(avi->stream_index >= 0){
AVStream *st= s->streams[ avi->stream_index ];
AVIStream *ast= st->priv_data;
- int size;
+ int size, err;
if(ast->sample_size <= 1) // minorityreport.AVI block_align=1024 sample_size=1 IMA-ADPCM
size= INT_MAX;
if(size > ast->remaining)
size= ast->remaining;
avi->last_pkt_pos= url_ftell(pb);
- av_get_packet(pb, pkt, size);
+ err= av_get_packet(pb, pkt, size);
+ if(err<0)
+ return err;
if(ast->has_pal && pkt->data && pkt->size<(unsigned)INT_MAX/2){
+ void *ptr= av_realloc(pkt->data, pkt->size + 4*256 + FF_INPUT_BUFFER_PADDING_SIZE);
+ if(ptr){
ast->has_pal=0;
pkt->size += 4*256;
- pkt->data = av_realloc(pkt->data, pkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
- if(pkt->data)
+ pkt->data= ptr;
memcpy(pkt->data + pkt->size - 4*256, ast->pal, 4*256);
+ }else
+ av_log(s, AV_LOG_ERROR, "Failed to append palette\n");
}
- if (ENABLE_DV_DEMUXER && avi->dv_demux) {
+ if (CONFIG_DV_DEMUXER && avi->dv_demux) {
dstr = pkt->destruct;
size = dv_produce_packet(avi->dv_demux, pkt,
pkt->data, pkt->size);
// pkt->dts += ast->start;
if(ast->sample_size)
pkt->dts /= ast->sample_size;
-//av_log(NULL, AV_LOG_DEBUG, "dts:%"PRId64" offset:%"PRId64" %d/%d smpl_siz:%d base:%d st:%d size:%d\n", pkt->dts, ast->frame_offset, ast->scale, ast->rate, ast->sample_size, AV_TIME_BASE, avi->stream_index, size);
+//av_log(s, AV_LOG_DEBUG, "dts:%"PRId64" offset:%"PRId64" %d/%d smpl_siz:%d base:%d st:%d size:%d\n", pkt->dts, ast->frame_offset, ast->scale, ast->rate, ast->sample_size, AV_TIME_BASE, avi->stream_index, size);
pkt->stream_index = avi->stream_index;
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
size= d[4] + (d[5]<<8) + (d[6]<<16) + (d[7]<<24);
n= get_stream_idx(d+2);
-//av_log(NULL, AV_LOG_DEBUG, "%X %X %X %X %X %X %X %X %"PRId64" %d %d\n", d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7], i, size, n);
- if(i + size > avi->fsize || d[0]<0)
+//av_log(s, AV_LOG_DEBUG, "%X %X %X %X %X %X %X %X %"PRId64" %d %d\n", d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7], i, size, n);
+ if(i + (uint64_t)size > avi->fsize || d[0]<0)
continue;
//parse ix##
||(d[0] == 'J' && d[1] == 'U' && d[2] == 'N' && d[3] == 'K')
||(d[0] == 'i' && d[1] == 'd' && d[2] == 'x' && d[3] == '1')){
url_fskip(pb, size);
-//av_log(NULL, AV_LOG_DEBUG, "SKIP\n");
+//av_log(s, AV_LOG_DEBUG, "SKIP\n");
goto resync;
}
(d[2] == 'd' && d[3] == 'c') ||
(d[2] == 'w' && d[3] == 'b')*/) {
-//av_log(NULL, AV_LOG_DEBUG, "OK\n");
+//av_log(s, AV_LOG_DEBUG, "OK\n");
if(d[2]*256+d[3] == ast->prefix)
ast->prefix_count++;
else{
}
}
- return -1;
+ return AVERROR_EOF;
}
/* XXX: We make the implicit supposition that the positions are sorted
pos = get_le32(pb);
len = get_le32(pb);
#if defined(DEBUG_SEEK)
- av_log(NULL, AV_LOG_DEBUG, "%d: tag=0x%x flags=0x%x pos=0x%x len=%d/",
+ av_log(s, AV_LOG_DEBUG, "%d: tag=0x%x flags=0x%x pos=0x%x len=%d/",
i, tag, flags, pos, len);
#endif
if(i==0 && pos > avi->movi_list)
ast = st->priv_data;
#if defined(DEBUG_SEEK)
- av_log(NULL, AV_LOG_DEBUG, "%d cum_len=%"PRId64"\n", len, ast->cum_len);
+ av_log(s, AV_LOG_DEBUG, "%d cum_len=%"PRId64"\n", len, ast->cum_len);
#endif
+ if(url_feof(pb))
+ return -1;
+
if(last_pos == pos)
avi->non_interleaved= 1;
else
int i;
int64_t last_start=0;
int64_t first_end= INT64_MAX;
+ int64_t oldpos= url_ftell(s->pb);
for(i=0; i<s->nb_streams; i++){
AVStream *st = s->streams[i];
int n= st->nb_index_entries;
+ unsigned int size;
if(n <= 0)
continue;
+ if(n >= 2){
+ int64_t pos= st->index_entries[0].pos;
+ url_fseek(s->pb, pos + 4, SEEK_SET);
+ size= get_le32(s->pb);
+ if(pos + size > st->index_entries[1].pos)
+ last_start= INT64_MAX;
+ }
+
if(st->index_entries[0].pos > last_start)
last_start= st->index_entries[0].pos;
if(st->index_entries[n-1].pos < first_end)
first_end= st->index_entries[n-1].pos;
}
+ url_fseek(s->pb, oldpos, SEEK_SET);
return last_start > first_end;
}
pos = st->index_entries[index].pos;
timestamp = st->index_entries[index].timestamp;
-// av_log(NULL, AV_LOG_DEBUG, "XX %"PRId64" %d %"PRId64"\n", timestamp, index, st->index_entries[index].timestamp);
+// av_log(s, AV_LOG_DEBUG, "XX %"PRId64" %d %"PRId64"\n", timestamp, index, st->index_entries[index].timestamp);
- if (ENABLE_DV_DEMUXER && avi->dv_demux) {
+ if (CONFIG_DV_DEMUXER && avi->dv_demux) {
/* One and only one real stream for DV in AVI, and it has video */
/* offsets. Calling with other stream indexes should have failed */
/* the av_index_search_timestamp call above. */
index++;
}
-// av_log(NULL, AV_LOG_DEBUG, "%"PRId64" %d %"PRId64"\n", timestamp, index, st2->index_entries[index].timestamp);
+// av_log(s, AV_LOG_DEBUG, "%"PRId64" %d %"PRId64"\n", timestamp, index, st2->index_entries[index].timestamp);
/* extract the current frame number */
ast2->frame_offset = st2->index_entries[index].timestamp;
if(ast2->sample_size)
projects / ffmpeg / blobdiff