* 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 <strings.h>
+#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) */
int prefix_count;
uint32_t pal[256];
int has_pal;
+ int dshow_block_align; ///< block align variable used to emulate bugs in the MS dshow demuxer
+
+ AVFormatContext *sub_ctx;
+ AVPacket sub_pkt;
+ uint8_t *sub_buffer;
} AVIStream;
typedef struct {
int non_interleaved;
int stream_index;
DVDemuxContext* dv_demux;
+ int odml_depth;
+#define MAX_ODML_DEPTH 1000
} AVIContext;
static const char avi_headers[][8] = {
static int avi_load_index(AVFormatContext *s);
static int guess_ni_flag(AVFormatContext *s);
-#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",
- str, tag & 0xff,
- (tag >> 8) & 0xff,
- (tag >> 16) & 0xff,
- (tag >> 24) & 0xff,
- size);
+#define print_tag(str, tag, size) \
+ av_dlog(NULL, "%s: tag=%c%c%c%c size=0x%x\n", \
+ str, tag & 0xff, \
+ (tag >> 8) & 0xff, \
+ (tag >> 16) & 0xff, \
+ (tag >> 24) & 0xff, \
+ size)
+
+static inline int get_duration(AVIStream *ast, int len){
+ if(ast->sample_size){
+ return len;
+ }else if (ast->dshow_block_align){
+ return (len + ast->dshow_block_align - 1)/ast->dshow_block_align;
+ }else
+ return 1;
}
-#endif
-static int get_riff(AVIContext *avi, ByteIOContext *pb)
+static int get_riff(AVFormatContext *s, AVIOContext *pb)
{
+ AVIContext *avi = s->priv_data;
char header[8];
int i;
/* check RIFF header */
- get_buffer(pb, header, 4);
- avi->riff_end = get_le32(pb); /* RIFF chunk size */
- avi->riff_end += url_ftell(pb); /* RIFF chunk end */
- get_buffer(pb, header+4, 4);
+ avio_read(pb, header, 4);
+ avi->riff_end = avio_rl32(pb); /* RIFF chunk size */
+ avi->riff_end += avio_tell(pb); /* RIFF chunk end */
+ avio_read(pb, header+4, 4);
for(i=0; avi_headers[i][0]; i++)
if(!memcmp(header, avi_headers[i], 8))
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;
}
static int read_braindead_odml_indx(AVFormatContext *s, int frame_num){
AVIContext *avi = s->priv_data;
- ByteIOContext *pb = s->pb;
- int longs_pre_entry= get_le16(pb);
- int index_sub_type = get_byte(pb);
- int index_type = get_byte(pb);
- int entries_in_use = get_le32(pb);
- int chunk_id = get_le32(pb);
- int64_t base = get_le64(pb);
+ AVIOContext *pb = s->pb;
+ int longs_pre_entry= avio_rl16(pb);
+ int index_sub_type = avio_r8(pb);
+ int index_type = avio_r8(pb);
+ int entries_in_use = avio_rl32(pb);
+ int chunk_id = avio_rl32(pb);
+ int64_t base = avio_rl64(pb);
int stream_id= 10*((chunk_id&0xFF) - '0') + (((chunk_id>>8)&0xFF) - '0');
AVStream *st;
AVIStream *ast;
int i;
int64_t last_pos= -1;
- int64_t filesize= url_fsize(s->pb);
+ int64_t filesize= avio_size(s->pb);
#ifdef DEBUG_SEEK
av_log(s, AV_LOG_ERROR, "longs_pre_entry:%d index_type:%d entries_in_use:%d chunk_id:%X base:%16"PRIX64"\n",
longs_pre_entry,index_type, entries_in_use, chunk_id, base);
#endif
- if(stream_id > s->nb_streams || stream_id < 0)
+ if(stream_id >= s->nb_streams || stream_id < 0)
return -1;
st= s->streams[stream_id];
ast = st->priv_data;
if(index_sub_type)
return -1;
- get_le32(pb);
+ avio_rl32(pb);
if(index_type && longs_pre_entry != 2)
return -1;
for(i=0; i<entries_in_use; i++){
if(index_type){
- int64_t pos= get_le32(pb) + base - 8;
- int len = get_le32(pb);
+ int64_t pos= avio_rl32(pb) + base - 8;
+ int len = avio_rl32(pb);
int key= len >= 0;
len &= 0x7FFFFFFF;
#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;
- 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(last_pos != pos && (len || !ast->sample_size))
+ av_add_index_entry(st, pos, ast->cum_len, len, 0, key ? AVINDEX_KEYFRAME : 0);
- if(ast->sample_size)
- ast->cum_len += len;
- else
- ast->cum_len ++;
+ ast->cum_len += get_duration(ast, len);
last_pos= pos;
}else{
int64_t offset, pos;
int duration;
- offset = get_le64(pb);
- get_le32(pb); /* size */
- duration = get_le32(pb);
- pos = url_ftell(pb);
+ offset = avio_rl64(pb);
+ avio_rl32(pb); /* size */
+ duration = avio_rl32(pb);
+
+ if(url_feof(pb))
+ return -1;
+
+ pos = avio_tell(pb);
+
+ if(avi->odml_depth > MAX_ODML_DEPTH){
+ av_log(s, AV_LOG_ERROR, "Too deeply nested ODML indexes\n");
+ return -1;
+ }
- url_fseek(pb, offset+8, SEEK_SET);
+ avio_seek(pb, offset+8, SEEK_SET);
+ avi->odml_depth++;
read_braindead_odml_indx(s, frame_num);
+ avi->odml_depth--;
frame_num += duration;
- url_fseek(pb, pos, SEEK_SET);
+ avio_seek(pb, pos, SEEK_SET);
}
}
avi->index_loaded=1;
ts= st->index_entries[0].timestamp;
for(j=0; j<size; j+=max){
- av_add_index_entry(st, pos+j, ts + j/ast->sample_size, FFMIN(max, size-j), 0, AVINDEX_KEYFRAME);
+ av_add_index_entry(st, pos+j, ts+j, FFMIN(max, size-j), 0, AVINDEX_KEYFRAME);
}
}
}
-static int avi_read_tag(ByteIOContext *pb, char *buf, int maxlen, unsigned int size)
+static int avi_read_tag(AVFormatContext *s, AVStream *st, uint32_t tag, uint32_t size)
{
- int64_t i = url_ftell(pb);
+ AVIOContext *pb = s->pb;
+ char key[5] = {0}, *value;
+
size += (size & 1);
- get_strz(pb, buf, maxlen);
- url_fseek(pb, i+size, SEEK_SET);
- return 0;
+
+ if (size == UINT_MAX)
+ return -1;
+ value = av_malloc(size+1);
+ if (!value)
+ return -1;
+ avio_read(pb, value, size);
+ value[size]=0;
+
+ AV_WL32(key, tag);
+
+ return av_metadata_set2(st ? &st->metadata : &s->metadata, key, value,
+ AV_METADATA_DONT_STRDUP_VAL);
+}
+
+static void avi_read_info(AVFormatContext *s, uint64_t end)
+{
+ while (avio_tell(s->pb) < end) {
+ uint32_t tag = avio_rl32(s->pb);
+ uint32_t size = avio_rl32(s->pb);
+ avi_read_tag(s, NULL, tag, size);
+ }
+}
+
+static const char months[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
+
+static void avi_metadata_creation_time(AVMetadata **metadata, char *date)
+{
+ char month[4], time[9], buffer[64];
+ int i, day, year;
+ /* parse standard AVI date format (ie. "Mon Mar 10 15:04:43 2003") */
+ if (sscanf(date, "%*3s%*[ ]%3s%*[ ]%2d%*[ ]%8s%*[ ]%4d",
+ month, &day, time, &year) == 4) {
+ for (i=0; i<12; i++)
+ if (!strcasecmp(month, months[i])) {
+ snprintf(buffer, sizeof(buffer), "%.4d-%.2d-%.2d %s",
+ year, i+1, day, time);
+ av_metadata_set2(metadata, "creation_time", buffer, 0);
+ }
+ } else if (date[4] == '/' && date[7] == '/') {
+ date[4] = date[7] = '-';
+ av_metadata_set2(metadata, "creation_time", date, 0);
+ }
+}
+
+static void avi_read_nikon(AVFormatContext *s, uint64_t end)
+{
+ while (avio_tell(s->pb) < end) {
+ uint32_t tag = avio_rl32(s->pb);
+ uint32_t size = avio_rl32(s->pb);
+ switch (tag) {
+ case MKTAG('n', 'c', 't', 'g'): { /* Nikon Tags */
+ uint64_t tag_end = avio_tell(s->pb) + size;
+ while (avio_tell(s->pb) < tag_end) {
+ uint16_t tag = avio_rl16(s->pb);
+ uint16_t size = avio_rl16(s->pb);
+ const char *name = NULL;
+ char buffer[64] = {0};
+ size -= avio_read(s->pb, buffer,
+ FFMIN(size, sizeof(buffer)-1));
+ switch (tag) {
+ case 0x03: name = "maker"; break;
+ case 0x04: name = "model"; break;
+ case 0x13: name = "creation_time";
+ if (buffer[4] == ':' && buffer[7] == ':')
+ buffer[4] = buffer[7] = '-';
+ break;
+ }
+ if (name)
+ av_metadata_set2(&s->metadata, name, buffer, 0);
+ avio_skip(s->pb, size);
+ }
+ break;
+ }
+ default:
+ avio_skip(s->pb, size);
+ break;
+ }
+ }
}
static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
AVIContext *avi = s->priv_data;
- ByteIOContext *pb = s->pb;
- uint32_t tag, tag1, handler;
+ AVIOContext *pb = s->pb;
+ unsigned int tag, tag1, handler;
int codec_type, stream_index, frame_period, bit_rate;
- unsigned int size, nb_frames;
+ unsigned int size;
int i;
AVStream *st;
AVIStream *ast = NULL;
- char str_track[4];
int avih_width=0, avih_height=0;
int amv_file_format=0;
+ uint64_t list_end = 0;
avi->stream_index= -1;
- if (get_riff(avi, pb) < 0)
+ if (get_riff(s, pb) < 0)
return -1;
- avi->fsize = url_fsize(pb);
+ avi->fsize = avio_size(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;
for(;;) {
if (url_feof(pb))
goto fail;
- tag = get_le32(pb);
- size = get_le32(pb);
-#ifdef DEBUG
+ tag = avio_rl32(pb);
+ size = avio_rl32(pb);
+
print_tag("tag", tag, size);
-#endif
switch(tag) {
case MKTAG('L', 'I', 'S', 'T'):
+ list_end = avio_tell(pb) + size;
/* Ignored, except at start of video packets. */
- tag1 = get_le32(pb);
-#ifdef DEBUG
+ tag1 = avio_rl32(pb);
+
print_tag("list", tag1, 0);
-#endif
+
if (tag1 == MKTAG('m', 'o', 'v', 'i')) {
- avi->movi_list = url_ftell(pb) - 4;
+ avi->movi_list = avio_tell(pb) - 4;
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);
-#endif
+ else avi->movi_end = avio_size(pb);
+ av_dlog(NULL, "movi end=%"PRIx64"\n", avi->movi_end);
goto end_of_header;
}
+ else if (tag1 == MKTAG('I', 'N', 'F', 'O'))
+ avi_read_info(s, list_end);
+ else if (tag1 == MKTAG('n', 'c', 'd', 't'))
+ avi_read_nikon(s, list_end);
+
+ break;
+ case MKTAG('I', 'D', 'I', 'T'): {
+ unsigned char date[64] = {0};
+ size += (size & 1);
+ size -= avio_read(pb, date, FFMIN(size, sizeof(date)-1));
+ avio_skip(pb, size);
+ avi_metadata_creation_time(&s->metadata, date);
break;
+ }
case MKTAG('d', 'm', 'l', 'h'):
avi->is_odml = 1;
- url_fskip(pb, size + (size & 1));
+ avio_skip(pb, size + (size & 1));
break;
case MKTAG('a', 'm', 'v', 'h'):
amv_file_format=1;
case MKTAG('a', 'v', 'i', 'h'):
/* AVI header */
/* using frame_period is bad idea */
- frame_period = get_le32(pb);
- bit_rate = get_le32(pb) * 8;
- get_le32(pb);
- avi->non_interleaved |= get_le32(pb) & AVIF_MUSTUSEINDEX;
-
- url_fskip(pb, 2 * 4);
- get_le32(pb);
- get_le32(pb);
- avih_width=get_le32(pb);
- avih_height=get_le32(pb);
-
- url_fskip(pb, size - 10 * 4);
+ frame_period = avio_rl32(pb);
+ bit_rate = avio_rl32(pb) * 8;
+ avio_rl32(pb);
+ avi->non_interleaved |= avio_rl32(pb) & AVIF_MUSTUSEINDEX;
+
+ avio_skip(pb, 2 * 4);
+ avio_rl32(pb);
+ avio_rl32(pb);
+ avih_width=avio_rl32(pb);
+ avih_height=avio_rl32(pb);
+
+ avio_skip(pb, size - 10 * 4);
break;
case MKTAG('s', 't', 'r', 'h'):
/* stream header */
- tag1 = get_le32(pb);
- handler = get_le32(pb); /* codec tag */
+ tag1 = avio_rl32(pb);
+ handler = avio_rl32(pb); /* codec tag */
if(tag1 == MKTAG('p', 'a', 'd', 's')){
- url_fskip(pb, size - 8);
+ avio_skip(pb, size - 8);
break;
}else{
stream_index++;
if(amv_file_format)
tag1 = stream_index ? MKTAG('a','u','d','s') : MKTAG('v','i','d','s');
-#ifdef DEBUG
print_tag("strh", tag1, -1);
-#endif
+
if(tag1 == MKTAG('i', 'a', 'v', 's') || tag1 == MKTAG('i', 'v', 'a', 's')){
int64_t dv_dur;
ast = s->streams[0]->priv_data;
av_freep(&s->streams[0]->codec->extradata);
+ av_freep(&s->streams[0]->codec);
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;
}
s->streams[0]->priv_data = ast;
- url_fskip(pb, 3 * 4);
- ast->scale = get_le32(pb);
- ast->rate = get_le32(pb);
- url_fskip(pb, 4); /* start time */
+ avio_skip(pb, 3 * 4);
+ ast->scale = avio_rl32(pb);
+ ast->rate = avio_rl32(pb);
+ avio_skip(pb, 4); /* start time */
- dv_dur = get_le32(pb);
+ dv_dur = avio_rl32(pb);
if (ast->scale > 0 && ast->rate > 0 && dv_dur > 0) {
dv_dur *= AV_TIME_BASE;
s->duration = av_rescale(dv_dur, ast->scale, ast->rate);
*/
stream_index = s->nb_streams - 1;
- url_fskip(pb, size - 9*4);
+ avio_skip(pb, size - 9*4);
break;
}
assert(stream_index < s->nb_streams);
st->codec->stream_codec_tag= handler;
- get_le32(pb); /* flags */
- get_le16(pb); /* priority */
- get_le16(pb); /* language */
- get_le32(pb); /* initial frame */
- ast->scale = get_le32(pb);
- ast->rate = get_le32(pb);
+ avio_rl32(pb); /* flags */
+ avio_rl16(pb); /* priority */
+ avio_rl16(pb); /* language */
+ avio_rl32(pb); /* initial frame */
+ ast->scale = avio_rl32(pb);
+ ast->rate = avio_rl32(pb);
if(!(ast->scale && ast->rate)){
av_log(s, AV_LOG_WARNING, "scale/rate is %u/%u which is invalid. (This file has been generated by broken software.)\n", ast->scale, ast->rate);
if(frame_period){
}
av_set_pts_info(st, 64, ast->scale, ast->rate);
- ast->cum_len=get_le32(pb); /* start */
- nb_frames = get_le32(pb);
+ ast->cum_len=avio_rl32(pb); /* start */
+ st->nb_frames = avio_rl32(pb);
st->start_time = 0;
- st->duration = nb_frames;
- get_le32(pb); /* buffer size */
- get_le32(pb); /* quality */
- ast->sample_size = get_le32(pb); /* sample ssize */
+ avio_rl32(pb); /* buffer size */
+ avio_rl32(pb); /* quality */
+ ast->sample_size = avio_rl32(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'):
- codec_type = CODEC_TYPE_VIDEO;
+ codec_type = AVMEDIA_TYPE_VIDEO;
ast->sample_size = 0;
break;
case MKTAG('a', 'u', 'd', 's'):
- codec_type = CODEC_TYPE_AUDIO;
+ codec_type = AVMEDIA_TYPE_AUDIO;
break;
case MKTAG('t', 'x', 't', 's'):
- //FIXME
- codec_type = CODEC_TYPE_DATA; //CODEC_TYPE_SUB ? FIXME
+ codec_type = AVMEDIA_TYPE_SUBTITLE;
break;
case MKTAG('d', 'a', 't', 's'):
- codec_type = CODEC_TYPE_DATA;
+ codec_type = AVMEDIA_TYPE_DATA;
break;
default:
av_log(s, AV_LOG_ERROR, "unknown stream type %X\n", tag1);
goto fail;
}
+ if(ast->sample_size == 0)
+ st->duration = st->nb_frames;
ast->frame_offset= ast->cum_len;
- url_fskip(pb, size - 12 * 4);
+ avio_skip(pb, size - 12 * 4);
break;
case MKTAG('s', 't', 'r', 'f'):
/* stream header */
if (stream_index >= (unsigned)s->nb_streams || avi->dv_demux) {
- url_fskip(pb, size);
+ avio_skip(pb, size);
} else {
+ uint64_t cur_pos = avio_tell(pb);
+ if (cur_pos < list_end)
+ size = FFMIN(size, list_end - cur_pos);
st = s->streams[stream_index];
switch(codec_type) {
- case CODEC_TYPE_VIDEO:
+ case AVMEDIA_TYPE_VIDEO:
if(amv_file_format){
st->codec->width=avih_width;
st->codec->height=avih_height;
- st->codec->codec_type = CODEC_TYPE_VIDEO;
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_AMV;
- url_fskip(pb, size);
+ avio_skip(pb, size);
break;
}
- get_le32(pb); /* size */
- st->codec->width = get_le32(pb);
- st->codec->height = get_le32(pb);
- get_le16(pb); /* panes */
- st->codec->bits_per_coded_sample= get_le16(pb); /* depth */
- tag1 = get_le32(pb);
- get_le32(pb); /* ImageSize */
- get_le32(pb); /* XPelsPerMeter */
- get_le32(pb); /* YPelsPerMeter */
- get_le32(pb); /* ClrUsed */
- get_le32(pb); /* ClrImportant */
-
- if (tag1 == MKTAG('D', 'X', 'S', 'B')) {
- st->codec->codec_type = CODEC_TYPE_SUBTITLE;
+ tag1 = ff_get_bmp_header(pb, st);
+
+ if (tag1 == MKTAG('D', 'X', 'S', 'B') || tag1 == MKTAG('D','X','S','A')) {
+ st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
st->codec->codec_tag = tag1;
st->codec->codec_id = CODEC_ID_XSUB;
break;
if(size > 10*4 && size<(1<<30)){
st->codec->extradata_size= size - 10*4;
st->codec->extradata= av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
+ if (!st->codec->extradata) {
+ st->codec->extradata_size= 0;
+ return AVERROR(ENOMEM);
+ }
+ avio_read(pb, st->codec->extradata, st->codec->extradata_size);
}
if(st->codec->extradata_size & 1) //FIXME check if the encoder really did this correctly
- get_byte(pb);
+ avio_r8(pb);
/* Extract palette from extradata if bpp <= 8. */
/* This code assumes that extradata contains only palette. */
/* This is true for all paletted codecs implemented in FFmpeg. */
if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
-#ifdef WORDS_BIGENDIAN
+#if HAVE_BIGENDIAN
for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
- st->codec->palctrl->palette[i] = bswap_32(((uint32_t*)st->codec->extradata)[i]);
+ st->codec->palctrl->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
#else
memcpy(st->codec->palctrl->palette, st->codec->extradata,
FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
st->codec->palctrl->palette_changed = 1;
}
-#ifdef DEBUG
print_tag("video", tag1, 0);
-#endif
- st->codec->codec_type = CODEC_TYPE_VIDEO;
+
+ st->codec->codec_type = AVMEDIA_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.
-// url_fskip(pb, size - 5 * 4);
+ // Support "Resolution 1:1" for Avid AVI Codec
+ if(tag1 == MKTAG('A', 'V', 'R', 'n') &&
+ st->codec->extradata_size >= 31 &&
+ !memcmp(&st->codec->extradata[28], "1:1", 3))
+ st->codec->codec_id = CODEC_ID_RAWVIDEO;
+
+ 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);
+
+// avio_skip(pb, size - 5 * 4);
break;
- case CODEC_TYPE_AUDIO:
- get_wav_header(pb, st->codec, size);
+ case AVMEDIA_TYPE_AUDIO:
+ ff_get_wav_header(pb, st->codec, size);
+ ast->dshow_block_align= st->codec->block_align;
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;
}
- if (size%2) /* 2-aligned (fix for Stargate SG-1 - 3x18 - Shades of Grey.avi) */
- url_fskip(pb, 1);
+ if (size&1) /* 2-aligned (fix for Stargate SG-1 - 3x18 - Shades of Grey.avi) */
+ avio_skip(pb, 1);
/* Force parsing as several audio frames can be in
* one packet and timestamps refer to packet start. */
st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;
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;
}
- if (amv_file_format)
+ if (amv_file_format){
st->codec->codec_id = CODEC_ID_ADPCM_IMA_AMV;
+ ast->dshow_block_align = 0;
+ }
+ break;
+ case AVMEDIA_TYPE_SUBTITLE:
+ st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
+ st->codec->codec_id = CODEC_ID_PROBE;
break;
default:
- st->codec->codec_type = CODEC_TYPE_DATA;
+ st->codec->codec_type = AVMEDIA_TYPE_DATA;
st->codec->codec_id= CODEC_ID_NONE;
st->codec->codec_tag= 0;
- url_fskip(pb, size);
+ avio_skip(pb, size);
break;
}
}
break;
case MKTAG('i', 'n', 'd', 'x'):
- i= url_ftell(pb);
+ i= avio_tell(pb);
if(!url_is_streamed(pb) && !(s->flags & AVFMT_FLAG_IGNIDX)){
read_braindead_odml_indx(s, 0);
}
- url_fseek(pb, i+size, SEEK_SET);
+ avio_seek(pb, i+size, SEEK_SET);
break;
case MKTAG('v', 'p', 'r', 'p'):
if(stream_index < (unsigned)s->nb_streams && size > 9*4){
AVRational active, active_aspect;
st = s->streams[stream_index];
- get_le32(pb);
- get_le32(pb);
- get_le32(pb);
- get_le32(pb);
- get_le32(pb);
-
- active_aspect.den= get_le16(pb);
- active_aspect.num= get_le16(pb);
- active.num = get_le32(pb);
- active.den = get_le32(pb);
- get_le32(pb); //nbFieldsPerFrame
+ avio_rl32(pb);
+ avio_rl32(pb);
+ avio_rl32(pb);
+ avio_rl32(pb);
+ avio_rl32(pb);
+
+ active_aspect.den= avio_rl16(pb);
+ active_aspect.num= avio_rl16(pb);
+ active.num = avio_rl32(pb);
+ active.den = avio_rl32(pb);
+ avio_rl32(pb); //nbFieldsPerFrame
if(active_aspect.num && active_aspect.den && active.num && active.den){
st->sample_aspect_ratio= av_div_q(active_aspect, active);
}
size -= 9*4;
}
- url_fseek(pb, size, SEEK_CUR);
- break;
- case MKTAG('I', 'N', 'A', 'M'):
- avi_read_tag(pb, s->title, sizeof(s->title), size);
- break;
- case MKTAG('I', 'A', 'R', 'T'):
- avi_read_tag(pb, s->author, sizeof(s->author), size);
- break;
- case MKTAG('I', 'C', 'O', 'P'):
- avi_read_tag(pb, s->copyright, sizeof(s->copyright), size);
- break;
- case MKTAG('I', 'C', 'M', 'T'):
- avi_read_tag(pb, s->comment, sizeof(s->comment), size);
- break;
- case MKTAG('I', 'G', 'N', 'R'):
- avi_read_tag(pb, s->genre, sizeof(s->genre), size);
- break;
- case MKTAG('I', 'P', 'R', 'D'):
- avi_read_tag(pb, s->album, sizeof(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);
+ avio_skip(pb, size);
break;
+ case MKTAG('s', 't', 'r', 'n'):
+ if(s->nb_streams){
+ avi_read_tag(s, s->streams[s->nb_streams-1], tag, size);
+ break;
+ }
default:
if(size > 1000000){
av_log(s, AV_LOG_ERROR, "Something went wrong during header parsing, "
"I will ignore it and try to continue anyway.\n");
- avi->movi_list = url_ftell(pb) - 4;
- avi->movi_end = url_fsize(pb);
+ avi->movi_list = avio_tell(pb) - 4;
+ avi->movi_end = avio_size(pb);
goto end_of_header;
}
/* skip tag */
size += (size & 1);
- url_fskip(pb, size);
+ avio_skip(pb, size);
break;
}
}
avi_load_index(s);
avi->index_loaded = 1;
avi->non_interleaved |= guess_ni_flag(s);
+ for(i=0; i<s->nb_streams; i++){
+ AVStream *st = s->streams[i];
+ if(st->nb_index_entries)
+ break;
+ }
+ if(i==s->nb_streams && avi->non_interleaved) {
+ av_log(s, AV_LOG_WARNING, "non-interleaved AVI without index, switching to interleaved\n");
+ avi->non_interleaved=0;
+ }
+
if(avi->non_interleaved) {
av_log(s, AV_LOG_INFO, "non-interleaved AVI\n");
clean_index(s);
}
+ ff_metadata_conv_ctx(s, NULL, ff_avi_metadata_conv);
+
+ return 0;
+}
+
+static int read_gab2_sub(AVStream *st, AVPacket *pkt) {
+ if (!strcmp(pkt->data, "GAB2") && AV_RL16(pkt->data+5) == 2) {
+ uint8_t desc[256];
+ int score = AVPROBE_SCORE_MAX / 2, ret;
+ AVIStream *ast = st->priv_data;
+ AVInputFormat *sub_demuxer;
+ AVRational time_base;
+ AVIOContext *pb = avio_alloc_context( pkt->data + 7,
+ pkt->size - 7,
+ 0, NULL, NULL, NULL, NULL);
+ AVProbeData pd;
+ unsigned int desc_len = avio_rl32(pb);
+
+ if (desc_len > pb->buf_end - pb->buf_ptr)
+ goto error;
+
+ ret = avio_get_str16le(pb, desc_len, desc, sizeof(desc));
+ avio_skip(pb, desc_len - ret);
+ if (*desc)
+ av_metadata_set2(&st->metadata, "title", desc, 0);
+
+ avio_rl16(pb); /* flags? */
+ avio_rl32(pb); /* data size */
+
+ pd = (AVProbeData) { .buf = pb->buf_ptr, .buf_size = pb->buf_end - pb->buf_ptr };
+ if (!(sub_demuxer = av_probe_input_format2(&pd, 1, &score)))
+ goto error;
+
+ if (!av_open_input_stream(&ast->sub_ctx, pb, "", sub_demuxer, NULL)) {
+ av_read_packet(ast->sub_ctx, &ast->sub_pkt);
+ *st->codec = *ast->sub_ctx->streams[0]->codec;
+ ast->sub_ctx->streams[0]->codec->extradata = NULL;
+ time_base = ast->sub_ctx->streams[0]->time_base;
+ av_set_pts_info(st, 64, time_base.num, time_base.den);
+ }
+ ast->sub_buffer = pkt->data;
+ memset(pkt, 0, sizeof(*pkt));
+ return 1;
+error:
+ av_freep(&pb);
+ }
return 0;
}
+static AVStream *get_subtitle_pkt(AVFormatContext *s, AVStream *next_st,
+ AVPacket *pkt)
+{
+ AVIStream *ast, *next_ast = next_st->priv_data;
+ int64_t ts, next_ts, ts_min = INT64_MAX;
+ AVStream *st, *sub_st = NULL;
+ int i;
+
+ next_ts = av_rescale_q(next_ast->frame_offset, next_st->time_base,
+ AV_TIME_BASE_Q);
+
+ for (i=0; i<s->nb_streams; i++) {
+ st = s->streams[i];
+ ast = st->priv_data;
+ if (st->discard < AVDISCARD_ALL && ast && ast->sub_pkt.data) {
+ ts = av_rescale_q(ast->sub_pkt.dts, st->time_base, AV_TIME_BASE_Q);
+ if (ts <= next_ts && ts < ts_min) {
+ ts_min = ts;
+ sub_st = st;
+ }
+ }
+ }
+
+ if (sub_st) {
+ ast = sub_st->priv_data;
+ *pkt = ast->sub_pkt;
+ pkt->stream_index = sub_st->index;
+ if (av_read_packet(ast->sub_ctx, &ast->sub_pkt) < 0)
+ ast->sub_pkt.data = NULL;
+ }
+ return sub_st;
+}
+
static int get_stream_idx(int *d){
if( d[0] >= '0' && d[0] <= '9'
&& d[1] >= '0' && d[1] <= '9'){
static int avi_read_packet(AVFormatContext *s, AVPacket *pkt)
{
AVIContext *avi = s->priv_data;
- ByteIOContext *pb = s->pb;
- int n, d[8], size;
+ AVIOContext *pb = s->pb;
+ 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;
}
AVStream *st = s->streams[i];
AVIStream *ast = st->priv_data;
int64_t ts= ast->frame_offset;
+ int64_t last_ts;
- if(ast->sample_size)
- ts /= ast->sample_size;
- ts= av_rescale(ts, AV_TIME_BASE * (int64_t)st->time_base.num, st->time_base.den);
+ if(!st->nb_index_entries)
+ continue;
-// av_log(NULL, 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){
+ last_ts = st->index_entries[st->nb_index_entries - 1].timestamp;
+ if(!ast->remaining && ts > last_ts)
+ continue;
+
+ ts = av_rescale_q(ts, st->time_base, (AVRational){FFMAX(1, ast->sample_size), AV_TIME_BASE});
+
+// 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){
best_ts= ts;
best_st= st;
best_stream_index= i;
return -1;
best_ast = best_st->priv_data;
- best_ts= av_rescale(best_ts, best_st->time_base.den, AV_TIME_BASE * (int64_t)best_st->time_base.num); //FIXME a little ugly
+ best_ts = av_rescale_q(best_ts, (AVRational){FFMAX(1, best_ast->sample_size), AV_TIME_BASE}, best_st->time_base);
if(best_ast->remaining)
i= av_index_search_timestamp(best_st, best_ts, AVSEEK_FLAG_ANY | AVSEEK_FLAG_BACKWARD);
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
- * FFMAX(1, best_ast->sample_size);
+ best_ast->frame_offset= best_st->index_entries[i].timestamp;
}
-// 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);
+ avio_seek(s->pb, pos + 8, SEEK_SET);
+// 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(get_subtitle_pkt(s, st, pkt))
+ return 0;
if(ast->sample_size <= 1) // minorityreport.AVI block_align=1024 sample_size=1 IMA-ADPCM
size= INT_MAX;
else if(ast->sample_size < 32)
- size= 64*ast->sample_size;
+ // arbitrary multiplier to avoid tiny packets for raw PCM data
+ size= 1024*ast->sample_size;
else
size= ast->sample_size;
if(size > ast->remaining)
size= ast->remaining;
- avi->last_pkt_pos= url_ftell(pb);
- av_get_packet(pb, pkt, size);
+ avi->last_pkt_pos= avio_tell(pb);
+ 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->destruct = dstr;
- pkt->flags |= PKT_FLAG_KEY;
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ if (size < 0)
+ av_free_packet(pkt);
+ } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE
+ && !st->codec->codec_tag && read_gab2_sub(st, pkt)) {
+ ast->frame_offset++;
+ avi->stream_index = -1;
+ ast->remaining = 0;
+ goto resync;
} else {
/* XXX: How to handle B-frames in AVI? */
pkt->dts = ast->frame_offset;
// 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) {
+ if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
AVIndexEntry *e;
int index;
assert(st->index_entries);
- index= av_index_search_timestamp(st, pkt->dts, 0);
+ index= av_index_search_timestamp(st, ast->frame_offset, 0);
e= &st->index_entries[index];
if(index >= 0 && e->timestamp == ast->frame_offset){
if (e->flags & AVINDEX_KEYFRAME)
- pkt->flags |= PKT_FLAG_KEY;
+ pkt->flags |= AV_PKT_FLAG_KEY;
}
} else {
- pkt->flags |= PKT_FLAG_KEY;
+ pkt->flags |= AV_PKT_FLAG_KEY;
}
- if(ast->sample_size)
- ast->frame_offset += pkt->size;
- else
- ast->frame_offset++;
+ ast->frame_offset += get_duration(ast, pkt->size);
}
ast->remaining -= size;
if(!ast->remaining){
}
memset(d, -1, sizeof(int)*8);
- for(i=sync=url_ftell(pb); !url_feof(pb); i++) {
+ for(i=sync=avio_tell(pb); !url_feof(pb); i++) {
int j;
for(j=0; j<7; j++)
d[j]= d[j+1];
- d[7]= get_byte(pb);
+ d[7]= avio_r8(pb);
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##
//parse JUNK
||(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");
+ avio_skip(pb, size);
+//av_log(s, AV_LOG_DEBUG, "SKIP\n");
+ goto resync;
+ }
+
+ //parse stray LIST
+ if(d[0] == 'L' && d[1] == 'I' && d[2] == 'S' && d[3] == 'T'){
+ avio_skip(pb, 4);
goto resync;
}
if(!((i-avi->last_pkt_pos)&1) && get_stream_idx(d+1) < s->nb_streams)
continue;
+ //detect ##ix chunk and skip
+ if(d[2] == 'i' && d[3] == 'x' && n < s->nb_streams){
+ avio_skip(pb, size);
+ goto resync;
+ }
+
//parse ##dc/##wb
if(n < s->nb_streams){
AVStream *st;
//workaround for broken small-file-bug402.avi
if( d[2] == 'w' && d[3] == 'b'
&& n==0
- && st ->codec->codec_type == CODEC_TYPE_VIDEO
- && st1->codec->codec_type == CODEC_TYPE_AUDIO
+ && st ->codec->codec_type == AVMEDIA_TYPE_VIDEO
+ && st1->codec->codec_type == AVMEDIA_TYPE_AUDIO
&& ast->prefix == 'd'*256+'c'
&& (d[2]*256+d[3] == ast1->prefix || !ast1->prefix_count)
){
if( (st->discard >= AVDISCARD_DEFAULT && size==0)
- /*|| (st->discard >= AVDISCARD_NONKEY && !(pkt->flags & PKT_FLAG_KEY))*/ //FIXME needs a little reordering
+ /*|| (st->discard >= AVDISCARD_NONKEY && !(pkt->flags & AV_PKT_FLAG_KEY))*/ //FIXME needs a little reordering
|| st->discard >= AVDISCARD_ALL){
- if(ast->sample_size) ast->frame_offset += pkt->size;
- else ast->frame_offset++;
- url_fskip(pb, size);
+ ast->frame_offset += get_duration(ast, size);
+ avio_skip(pb, size);
goto resync;
}
if (d[2] == 'p' && d[3] == 'c' && size<=4*256+4) {
- int k = get_byte(pb);
- int last = (k + get_byte(pb) - 1) & 0xFF;
+ int k = avio_r8(pb);
+ int last = (k + avio_r8(pb) - 1) & 0xFF;
- get_le16(pb); //flags
+ avio_rl16(pb); //flags
for (; k <= last; k++)
- ast->pal[k] = get_be32(pb)>>8;// b + (g << 8) + (r << 16);
+ ast->pal[k] = avio_rb32(pb)>>8;// b + (g << 8) + (r << 16);
ast->has_pal= 1;
goto resync;
} else if( ((ast->prefix_count<5 || sync+9 > i) && d[2]<128 && d[3]<128) ||
(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{
ast->packet_size= size + 8;
ast->remaining= size;
- {
- uint64_t pos= url_ftell(pb) - 8;
+ if(size || !ast->sample_size){
+ uint64_t pos= avio_tell(pb) - 8;
if(!st->index_entries || !st->nb_index_entries || st->index_entries[st->nb_index_entries - 1].pos < pos){
- av_add_index_entry(st, pos, ast->frame_offset / FFMAX(1, ast->sample_size), size, 0, AVINDEX_KEYFRAME);
+ av_add_index_entry(st, pos, ast->frame_offset, size, 0, AVINDEX_KEYFRAME);
}
}
goto resync;
}
}
- return -1;
+ return AVERROR_EOF;
}
/* XXX: We make the implicit supposition that the positions are sorted
static int avi_read_idx1(AVFormatContext *s, int size)
{
AVIContext *avi = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
int nb_index_entries, i;
AVStream *st;
AVIStream *ast;
/* Read the entries and sort them in each stream component. */
for(i = 0; i < nb_index_entries; i++) {
- tag = get_le32(pb);
- flags = get_le32(pb);
- pos = get_le32(pb);
- len = get_le32(pb);
+ tag = avio_rl32(pb);
+ flags = avio_rl32(pb);
+ pos = avio_rl32(pb);
+ len = avio_rl32(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
- av_add_index_entry(st, pos, ast->cum_len / FFMAX(1, ast->sample_size), len, 0, (flags&AVIIF_INDEX) ? AVINDEX_KEYFRAME : 0);
- if(ast->sample_size)
- ast->cum_len += len;
- else
- ast->cum_len ++;
+ else if(len || !ast->sample_size)
+ av_add_index_entry(st, pos, ast->cum_len, len, 0, (flags&AVIIF_INDEX) ? AVINDEX_KEYFRAME : 0);
+ ast->cum_len += get_duration(ast, len);
last_pos= pos;
}
return 0;
int i;
int64_t last_start=0;
int64_t first_end= INT64_MAX;
+ int64_t oldpos= avio_tell(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;
+ avio_seek(s->pb, pos + 4, SEEK_SET);
+ size= avio_rl32(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;
}
+ avio_seek(s->pb, oldpos, SEEK_SET);
return last_start > first_end;
}
static int avi_load_index(AVFormatContext *s)
{
AVIContext *avi = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
uint32_t tag, size;
- int64_t pos= url_ftell(pb);
+ int64_t pos= avio_tell(pb);
+ int ret = -1;
- url_fseek(pb, avi->movi_end, SEEK_SET);
+ if (avio_seek(pb, avi->movi_end, SEEK_SET) < 0)
+ goto the_end; // maybe truncated file
#ifdef DEBUG_SEEK
printf("movi_end=0x%"PRIx64"\n", avi->movi_end);
#endif
for(;;) {
if (url_feof(pb))
break;
- tag = get_le32(pb);
- size = get_le32(pb);
+ tag = avio_rl32(pb);
+ size = avio_rl32(pb);
#ifdef DEBUG_SEEK
printf("tag=%c%c%c%c size=0x%x\n",
tag & 0xff,
case MKTAG('i', 'd', 'x', '1'):
if (avi_read_idx1(s, size) < 0)
goto skip;
- else
+ ret = 0;
goto the_end;
break;
default:
skip:
size += (size & 1);
- url_fskip(pb, size);
+ if (avio_skip(pb, size) < 0)
+ goto the_end; // something is wrong here
break;
}
}
the_end:
- url_fseek(pb, pos, SEEK_SET);
- return 0;
+ avio_seek(pb, pos, SEEK_SET);
+ return ret;
+}
+
+static void seek_subtitle(AVStream *st, AVStream *st2, int64_t timestamp)
+{
+ AVIStream *ast2 = st2->priv_data;
+ int64_t ts2 = av_rescale_q(timestamp, st->time_base, st2->time_base);
+ av_free_packet(&ast2->sub_pkt);
+ if (avformat_seek_file(ast2->sub_ctx, 0, INT64_MIN, ts2, ts2, 0) >= 0 ||
+ avformat_seek_file(ast2->sub_ctx, 0, ts2, ts2, INT64_MAX, 0) >= 0)
+ av_read_packet(ast2->sub_ctx, &ast2->sub_pkt);
}
static int avi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
AVStream *st;
int i, index;
int64_t pos;
+ AVIStream *ast;
if (!avi->index_loaded) {
/* we only load the index on demand */
assert(stream_index>= 0);
st = s->streams[stream_index];
- index= av_index_search_timestamp(st, timestamp, flags);
+ ast= st->priv_data;
+ index= av_index_search_timestamp(st, timestamp * FFMAX(ast->sample_size, 1), flags);
if(index<0)
return -1;
/* find the position */
pos = st->index_entries[index].pos;
- timestamp = st->index_entries[index].timestamp;
+ timestamp = st->index_entries[index].timestamp / FFMAX(ast->sample_size, 1);
-// 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. */
/* DV demux so it can synthesize correct timestamps. */
dv_offset_reset(avi->dv_demux, timestamp);
- url_fseek(s->pb, pos, SEEK_SET);
+ avio_seek(s->pb, pos, SEEK_SET);
avi->stream_index= -1;
return 0;
}
ast2->packet_size=
ast2->remaining= 0;
+ if (ast2->sub_ctx) {
+ seek_subtitle(st, st2, timestamp);
+ continue;
+ }
+
if (st2->nb_index_entries <= 0)
continue;
assert((int64_t)st2->time_base.num*ast2->rate == (int64_t)st2->time_base.den*ast2->scale);
index = av_index_search_timestamp(
st2,
- av_rescale(timestamp, st2->time_base.den*(int64_t)st->time_base.num, st->time_base.den * (int64_t)st2->time_base.num),
+ av_rescale_q(timestamp, st->time_base, st2->time_base) * FFMAX(ast2->sample_size, 1),
flags | AVSEEK_FLAG_BACKWARD);
if(index<0)
index=0;
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)
- ast2->frame_offset *=ast2->sample_size;
}
/* do the seek */
- url_fseek(s->pb, pos, SEEK_SET);
+ avio_seek(s->pb, pos, SEEK_SET);
avi->stream_index= -1;
return 0;
}
for(i=0;i<s->nb_streams;i++) {
AVStream *st = s->streams[i];
+ AVIStream *ast = st->priv_data;
av_free(st->codec->palctrl);
+ if (ast) {
+ if (ast->sub_ctx) {
+ av_freep(&ast->sub_ctx->pb);
+ av_close_input_stream(ast->sub_ctx);
+ }
+ av_free(ast->sub_buffer);
+ av_free_packet(&ast->sub_pkt);
+ }
}
- if (avi->dv_demux)
- av_free(avi->dv_demux);
+ av_free(avi->dv_demux);
return 0;
}
return 0;
}
-AVInputFormat avi_demuxer = {
+AVInputFormat ff_avi_demuxer = {
"avi",
NULL_IF_CONFIG_SMALL("AVI format"),
sizeof(AVIContext),