Update internal FFmpeg copy.

1 files changed, 104 insertions, 44 deletions

diff --git a/contrib/ffmpeg/libavformat/avidec.c b/contrib/ffmpeg/libavformat/avidec.c
index 23c130ab7..4b9bcf2a4 100644
--- a/contrib/ffmpeg/libavformat/avidec.c
+++ b/contrib/ffmpeg/libavformat/avidec.c
@@ -48,6 +48,7 @@ typedef struct AVIStream {
 typedef struct {
     int64_t  riff_end;
     int64_t  movi_end;
+    int64_t  fsize;
     offset_t movi_list;
     int index_loaded;
     int is_odml;
@@ -56,6 +57,15 @@ typedef struct {
     DVDemuxContext* dv_demux;
 } AVIContext;
 
+static const char avi_headers[][8] = {
+    { 'R', 'I', 'F', 'F',    'A', 'V', 'I', ' ' },
+    { 'R', 'I', 'F', 'F',    'A', 'V', 'I', 'X' },
+    { 'R', 'I', 'F', 'F',    'A', 'V', 'I', 0x19},
+    { 'O', 'N', '2', ' ',    'O', 'N', '2', 'f' },
+    { 'R', 'I', 'F', 'F',    'A', 'M', 'V', ' ' },
+    { 0 }
+};
+
 static int avi_load_index(AVFormatContext *s);
 static int guess_ni_flag(AVFormatContext *s);
 
@@ -73,27 +83,30 @@ static void print_tag(const char *str, unsigned int tag, int size)
 
 static int get_riff(AVIContext *avi, ByteIOContext *pb)
 {
-    uint32_t tag;
-    /* check RIFF header */
-    tag = get_le32(pb);
+    char header[8];
+    int i;
 
-    if (tag != MKTAG('R', 'I', 'F', 'F'))
-        return -1;
+    /* 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 */
-    tag = get_le32(pb);
-    if(tag == MKTAG('A', 'V', 'I', 0x19))
-        av_log(NULL, AV_LOG_INFO, "file has been generated with a totally broken muxer\n");
-    else
-    if (tag != MKTAG('A', 'V', 'I', ' ') && tag != MKTAG('A', 'V', 'I', 'X'))
+    get_buffer(pb, header+4, 4);
+
+    for(i=0; avi_headers[i][0]; i++)
+        if(!memcmp(header, avi_headers[i], 8))
+            break;
+    if(!avi_headers[i][0])
         return -1;
 
+    if(header[7] == 0x19)
+        av_log(NULL, AV_LOG_INFO, "file has been generated with 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;
+    ByteIOContext *pb = s->pb;
     int longs_pre_entry= get_le16(pb);
     int index_sub_type = get_byte(pb);
     int index_type     = get_byte(pb);
@@ -105,7 +118,7 @@ static int read_braindead_odml_indx(AVFormatContext *s, int frame_num){
     AVIStream *ast;
     int i;
     int64_t last_pos= -1;
-    int64_t filesize= url_fsize(&s->pb);
+    int64_t filesize= url_fsize(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",
@@ -212,7 +225,7 @@ static int avi_read_tag(ByteIOContext *pb, char *buf, int maxlen,  unsigned int
 static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
 {
     AVIContext *avi = s->priv_data;
-    ByteIOContext *pb = &s->pb;
+    ByteIOContext *pb = s->pb;
     uint32_t tag, tag1, handler;
     int codec_type, stream_index, frame_period, bit_rate;
     unsigned int size, nb_frames;
@@ -220,12 +233,18 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
     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)
         return -1;
 
+    avi->fsize = url_fsize(pb);
+    if(avi->fsize<=0)
+        avi->fsize= avi->riff_end;
+
     /* first list tag */
     stream_index = -1;
     codec_type = -1;
@@ -260,6 +279,8 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
             avi->is_odml = 1;
             url_fskip(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 */
@@ -270,8 +291,11 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
 
             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 - 7 * 4);
+            url_fskip(pb, size - 10 * 4);
             break;
         case MKTAG('s', 't', 'r', 'h'):
             /* stream header */
@@ -293,6 +317,8 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
                     goto fail;
                 st->priv_data = ast;
             }
+            if(amv_file_format)
+                tag1 = stream_index ? MKTAG('a','u','d','s') : MKTAG('v','i','d','s');
 
 #ifdef DEBUG
             print_tag("strh", tag1, -1);
@@ -400,6 +426,14 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
                 st = s->streams[stream_index];
                 switch(codec_type) {
                 case CODEC_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_id = CODEC_ID_AMV;
+                        url_fskip(pb, size);
+                        break;
+                    }
                     get_le32(pb); /* size */
                     st->codec->width = get_le32(pb);
                     st->codec->height = get_le32(pb);
@@ -412,6 +446,13 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
                     get_le32(pb); /* ClrUsed */
                     get_le32(pb); /* ClrImportant */
 
+                    if (tag1 == MKTAG('D', 'X', 'S', 'B')) {
+                        st->codec->codec_type = CODEC_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);
@@ -442,7 +483,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
                     st->codec->codec_type = CODEC_TYPE_VIDEO;
                     st->codec->codec_tag = tag1;
                     st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1);
-                    st->need_parsing = 2; //only parse headers dont do slower repacketization, this is needed to get the pict type which is needed for generating correct pts
+                    st->need_parsing = AVSTREAM_PARSE_HEADERS; // this is needed to get the pict type which is needed for generating correct pts
 //                    url_fskip(pb, size - 5 * 4);
                     break;
                 case CODEC_TYPE_AUDIO:
@@ -452,17 +493,19 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
                     if (size%2) /* 2-aligned (fix for Stargate SG-1 - 3x18 - Shades of Grey.avi) */
                         url_fskip(pb, 1);
                     /* Force parsing as several audio frames can be in
-                     * one packet. */
-                    st->need_parsing = 1;
+                     * one packet and timestamps refer to packet start*/
+                    st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;
                     /* ADTS header is in extradata, AAC without header must be stored as exact frames, parser not needed and it will fail */
                     if (st->codec->codec_id == CODEC_ID_AAC && st->codec->extradata_size)
-                        st->need_parsing = 0;
+                        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")){
                         st->codec->codec_id  = CODEC_ID_XAN_DPCM;
                         st->codec->codec_tag = 0;
                     }
+                    if (amv_file_format)
+                        st->codec->codec_id  = CODEC_ID_ADPCM_IMA_AMV;
                     break;
                 default:
                     st->codec->codec_type = CODEC_TYPE_DATA;
@@ -480,6 +523,31 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
             }
             url_fseek(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.num= get_le16(pb);
+                active_aspect.den= get_le16(pb);
+                active.num       = get_le32(pb);
+                active.den       = get_le32(pb);
+                get_le32(pb); //nbFieldsPerFrame
+
+                if(active_aspect.num && active_aspect.den && active.num && active.den){
+                    st->codec->sample_aspect_ratio= av_div_q(active_aspect, active);
+//av_log(s, AV_LOG_ERROR, "vprp %d/%d %d/%d\n", active_aspect.num, active_aspect.den, active.num, active.den);
+                }
+                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;
@@ -540,7 +608,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
 static int avi_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
     AVIContext *avi = s->priv_data;
-    ByteIOContext *pb = &s->pb;
+    ByteIOContext *pb = s->pb;
     int n, d[8], size;
     offset_t i, sync;
     void* dstr;
@@ -585,7 +653,7 @@ static int avi_read_packet(AVFormatContext *s, AVPacket *pkt)
         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);
+            url_fseek(s->pb, pos + 8, SEEK_SET);
 //        av_log(NULL, AV_LOG_DEBUG, "pos=%"PRId64"\n", pos);
 
             assert(best_ast->remaining <= best_ast->packet_size);
@@ -662,14 +730,6 @@ resync:
     for(i=sync=url_ftell(pb); !url_feof(pb); i++) {
         int j;
 
-        if (i >= avi->movi_end) {
-            if (avi->is_odml) {
-                url_fskip(pb, avi->riff_end - i);
-                avi->riff_end = avi->movi_end = url_fsize(pb);
-            } else
-                break;
-        }
-
         for(j=0; j<7; j++)
             d[j]= d[j+1];
         d[7]= get_byte(pb);
@@ -683,13 +743,14 @@ resync:
             n= 100; //invalid stream id
         }
 //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->movi_end || d[0]<0)
+        if(i + size > avi->fsize || d[0]<0)
             continue;
 
         //parse ix##
         if(  (d[0] == 'i' && d[1] == 'x' && n < s->nb_streams)
         //parse JUNK
-           ||(d[0] == 'J' && d[1] == 'U' && d[2] == 'N' && d[3] == 'K')){
+           ||(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");
             goto resync;
@@ -748,7 +809,7 @@ resync:
         if (   d[0] >= '0' && d[0] <= '9'
             && d[1] >= '0' && d[1] <= '9'
             && ((d[2] == 'p' && d[3] == 'c'))
-            && n < s->nb_streams && i + size <= avi->movi_end) {
+            && n < s->nb_streams && i + size <= avi->fsize) {
 
             AVStream *st;
             int first, clr, flags, k, p;
@@ -783,7 +844,7 @@ resync:
 static int avi_read_idx1(AVFormatContext *s, int size)
 {
     AVIContext *avi = s->priv_data;
-    ByteIOContext *pb = &s->pb;
+    ByteIOContext *pb = s->pb;
     int nb_index_entries, i;
     AVStream *st;
     AVIStream *ast;
@@ -854,7 +915,7 @@ static int guess_ni_flag(AVFormatContext *s){
 static int avi_load_index(AVFormatContext *s)
 {
     AVIContext *avi = s->priv_data;
-    ByteIOContext *pb = &s->pb;
+    ByteIOContext *pb = s->pb;
     uint32_t tag, size;
     offset_t pos= url_ftell(pb);
 
@@ -929,7 +990,7 @@ static int avi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp
         /* DV demux so it can synth correct timestamps              */
         dv_offset_reset(avi->dv_demux, timestamp);
 
-        url_fseek(&s->pb, pos, SEEK_SET);
+        url_fseek(s->pb, pos, SEEK_SET);
         avi->stream_index= -1;
         return 0;
     }
@@ -969,7 +1030,7 @@ static int avi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp
     }
 
     /* do the seek */
-    url_fseek(&s->pb, pos, SEEK_SET);
+    url_fseek(s->pb, pos, SEEK_SET);
     avi->stream_index= -1;
     return 0;
 }
@@ -994,16 +1055,15 @@ static int avi_read_close(AVFormatContext *s)
 
 static int avi_probe(AVProbeData *p)
 {
+    int i;
+
     /* check file header */
-    if (p->buf_size <= 32)
-        return 0;
-    if (p->buf[0] == 'R' && p->buf[1] == 'I' &&
-        p->buf[2] == 'F' && p->buf[3] == 'F' &&
-        p->buf[8] == 'A' && p->buf[9] == 'V' &&
-        p->buf[10] == 'I' && (p->buf[11] == ' ' || p->buf[11] == 0x19))
-        return AVPROBE_SCORE_MAX;
-    else
-        return 0;
+    for(i=0; avi_headers[i][0]; i++)
+        if(!memcmp(p->buf  , avi_headers[i]  , 4) &&
+           !memcmp(p->buf+8, avi_headers[i]+4, 4))
+            return AVPROBE_SCORE_MAX;
+
+    return 0;
 }
 
 AVInputFormat avi_demuxer = {