]> git.sesse.net Git - vlc/blobdiff - modules/demux/avformat/demux.c
AVFormat Demuxer : Set video ES frame rate.
[vlc] / modules / demux / avformat / demux.c
index 2e48e421ab7d268a525a001ec225efa7423905a9..98d857cbbfb2d3030f2ac54c7f1b89be43b47957 100644 (file)
@@ -47,6 +47,7 @@
 
 #include "../../codec/avcodec/avcodec.h"
 #include "avformat.h"
+#include "../xiph.h"
 #include "../vobsub.h"
 
 //#define AVFORMAT_DEBUG 1
@@ -83,6 +84,8 @@ struct demux_sys_t
     int64_t     i_pcr_inc;
     int         i_pcr_tk;
 
+    unsigned    i_ssa_order;
+
     int                i_attachments;
     input_attachment_t **attachments;
 
@@ -99,6 +102,7 @@ static int Control( demux_t *p_demux, int i_query, va_list args );
 static int IORead( void *opaque, uint8_t *buf, int buf_size );
 static int64_t IOSeek( void *opaque, int64_t offset, int whence );
 
+static block_t *BuildSsaFrame( const AVPacket *p_pkt, unsigned i_order );
 static void UpdateSeekPoint( demux_t *p_demux, int64_t i_time );
 
 /*****************************************************************************
@@ -112,6 +116,7 @@ int OpenDemux( vlc_object_t *p_this )
     AVInputFormat *fmt;
     unsigned int  i;
     int64_t       i_start_time = -1;
+    bool          b_can_seek;
 
     /* Init Probe data */
     pd.filename = p_demux->psz_path;
@@ -175,6 +180,7 @@ int OpenDemux( vlc_object_t *p_this )
     p_sys->tk = NULL;
     p_sys->i_pcr_tk = -1;
     p_sys->i_pcr = -1;
+    p_sys->i_ssa_order = 0;
     TAB_INIT( p_sys->i_attachments, p_sys->attachments);
     p_sys->p_title = NULL;
 
@@ -195,6 +201,18 @@ int OpenDemux( vlc_object_t *p_this )
     init_put_byte( &p_sys->io, p_sys->io_buffer, p_sys->io_buffer_size,
                    0, &p_sys->url, IORead, NULL, IOSeek );
 
+    stream_Control( p_demux->s, STREAM_CAN_SEEK, &b_can_seek );
+    if( !b_can_seek )
+    {
+       /* Tell avformat that input is stream, so it doesn't get stuck
+       when trying av_find_stream_info() trying to seek all the wrong places
+       init_put_byte defaults io.is_streamed=0, so thats why we set them after it
+       */
+       p_sys->url.is_streamed = 1;
+       p_sys->io.is_streamed = 1;
+    }
+
+
     /* Open it */
     if( av_open_input_stream( &p_sys->ic, &p_sys->io, p_demux->psz_path,
                               p_sys->fmt, NULL ) )
@@ -207,16 +225,15 @@ int OpenDemux( vlc_object_t *p_this )
     vlc_avcodec_lock(); /* avformat calls avcodec behind our back!!! */
     if( av_find_stream_info( p_sys->ic ) < 0 )
     {
-        vlc_avcodec_unlock();
-        msg_Err( p_demux, "av_find_stream_info failed" );
-        CloseDemux( p_this );
-        return VLC_EGENERIC;
+        msg_Warn( p_demux, "av_find_stream_info failed" );
     }
     vlc_avcodec_unlock();
 
     for( i = 0; i < p_sys->ic->nb_streams; i++ )
     {
-        AVCodecContext *cc = p_sys->ic->streams[i]->codec;
+        AVStream *s = p_sys->ic->streams[i];
+        AVCodecContext *cc = s->codec;
+
         es_out_id_t  *es;
         es_format_t  fmt;
         vlc_fourcc_t fcc;
@@ -264,6 +281,8 @@ int OpenDemux( vlc_object_t *p_this )
                 *fmt.video.p_palette = *(video_palette_t *)cc->palctrl;
             }
             psz_type = "video";
+            fmt.video.i_frame_rate = cc->time_base.den;
+            fmt.video.i_frame_rate_base = cc->time_base.num;
             break;
 
         case CODEC_TYPE_SUBTITLE:
@@ -322,7 +341,7 @@ int OpenDemux( vlc_object_t *p_this )
                 psz_type = "attachment";
                 if( cc->codec_id == CODEC_ID_TTF )
                 {
-                    p_attachment = vlc_input_attachment_New( p_sys->ic->streams[i]->filename, "application/x-truetype-font", NULL,
+                    p_attachment = vlc_input_attachment_New( s->filename, "application/x-truetype-font", NULL,
                                              cc->extradata, (int)cc->extradata_size );
                     TAB_APPEND( p_sys->i_attachments, p_sys->attachments, p_attachment );
                 }
@@ -337,16 +356,78 @@ int OpenDemux( vlc_object_t *p_this )
             msg_Warn( p_demux, "unsupported track type in ffmpeg demux" );
             break;
         }
-        fmt.psz_language = p_sys->ic->streams[i]->language;
+        fmt.psz_language = strdup( s->language );
+        if( s->disposition & AV_DISPOSITION_DEFAULT )
+            fmt.i_priority = 1000;
 
 #ifdef HAVE_FFMPEG_CODEC_ATTACHMENT
         if( cc->codec_type != CODEC_TYPE_ATTACHMENT )
 #endif
         {
-            fmt.i_extra = cc->extradata_size;
-            fmt.p_extra = cc->extradata;
+            const bool    b_ogg = !strcmp( p_sys->fmt->name, "ogg" );
+            const uint8_t *p_extra = cc->extradata;
+            unsigned      i_extra  = cc->extradata_size;
+
+            if( cc->codec_id == CODEC_ID_THEORA && b_ogg )
+            {
+                unsigned pi_size[3];
+                void     *pp_data[3];
+                unsigned i_count;
+                for( i_count = 0; i_count < 3; i_count++ )
+                {
+                    if( i_extra < 2 )
+                        break;
+                    pi_size[i_count] = GetWBE( p_extra );
+                    pp_data[i_count] = (uint8_t*)&p_extra[2];
+                    if( i_extra < pi_size[i_count] + 2 )
+                        break;
+
+                    p_extra += 2 + pi_size[i_count];
+                    i_extra -= 2 + pi_size[i_count];
+                }
+                if( i_count > 0 && xiph_PackHeaders( &fmt.i_extra, &fmt.p_extra,
+                                                     pi_size, pp_data, i_count ) )
+                {
+                    fmt.i_extra = 0;
+                    fmt.p_extra = NULL;
+                }
+            }
+            else if( cc->codec_id == CODEC_ID_SPEEX && b_ogg )
+            {
+                uint8_t p_dummy_comment[] = {
+                    0, 0, 0, 0,
+                    0, 0, 0, 0,
+                };
+                unsigned pi_size[2];
+                void     *pp_data[2];
+
+                pi_size[0] = i_extra;
+                pp_data[0] = (uint8_t*)p_extra;
+
+                pi_size[1] = sizeof(p_dummy_comment);
+                pp_data[1] = p_dummy_comment;
+
+                if( pi_size[0] > 0 && xiph_PackHeaders( &fmt.i_extra, &fmt.p_extra,
+                                                        pi_size, pp_data, 2 ) )
+                {
+                    fmt.i_extra = 0;
+                    fmt.p_extra = NULL;
+                }
+            }
+            else if( cc->extradata_size > 0 )
+            {
+                fmt.p_extra = malloc( i_extra );
+                if( fmt.p_extra )
+                {
+                    fmt.i_extra = i_extra;
+                    memcpy( fmt.p_extra, p_extra, i_extra );
+                }
+            }
         }
         es = es_out_Add( p_demux->out, &fmt );
+        if( s->disposition & AV_DISPOSITION_DEFAULT )
+            es_out_Control( p_demux->out, ES_OUT_SET_ES_DEFAULT, es );
+        es_format_Clean( &fmt );
 
         msg_Dbg( p_demux, "adding es: %s codec = %4.4s",
                  psz_type, (char*)&fcc );
@@ -431,13 +512,30 @@ static int Demux( demux_t *p_demux )
         return 1;
     }
     const AVStream *p_stream = p_sys->ic->streams[pkt.stream_index];
-
-    if( ( p_frame = block_New( p_demux, pkt.size ) ) == NULL )
+    if( p_stream->time_base.den <= 0 )
     {
-        return 0;
+        msg_Warn( p_demux, "Invalid time base for the stream %d", pkt.stream_index );
+        av_free_packet( &pkt );
+        return 1;
+    }
+    if( p_stream->codec->codec_id == CODEC_ID_SSA )
+    {
+        p_frame = BuildSsaFrame( &pkt, p_sys->i_ssa_order++ );
+        if( !p_frame )
+        {
+            av_free_packet( &pkt );
+            return 1;
+        }
+    }
+    else
+    {
+        if( ( p_frame = block_New( p_demux, pkt.size ) ) == NULL )
+        {
+            av_free_packet( &pkt );
+            return 0;
+        }
+        memcpy( p_frame->p_buffer, pkt.data, pkt.size );
     }
-
-    memcpy( p_frame->p_buffer, pkt.data, pkt.size );
 
     if( pkt.flags & PKT_FLAG_KEY )
         p_frame->i_flags |= BLOCK_FLAG_TYPE_I;
@@ -446,31 +544,31 @@ static int Demux( demux_t *p_demux )
         ( p_sys->ic->start_time * 1000000 / AV_TIME_BASE )  : 0;
 
     p_frame->i_dts = ( pkt.dts == (int64_t)AV_NOPTS_VALUE ) ?
-        0 : (pkt.dts) * 1000000 *
+        VLC_TS_INVALID : (pkt.dts) * 1000000 *
         p_stream->time_base.num /
-        p_stream->time_base.den - i_start_time;
+        p_stream->time_base.den - i_start_time + VLC_TS_0;
     p_frame->i_pts = ( pkt.pts == (int64_t)AV_NOPTS_VALUE ) ?
-        0 : (pkt.pts) * 1000000 *
+        VLC_TS_INVALID : (pkt.pts) * 1000000 *
         p_stream->time_base.num /
-        p_stream->time_base.den - i_start_time;
-    if( pkt.duration > 0 )
+        p_stream->time_base.den - i_start_time + VLC_TS_0;
+    if( pkt.duration > 0 && p_frame->i_length <= 0 )
         p_frame->i_length = pkt.duration * 1000000 *
             p_stream->time_base.num /
-            p_stream->time_base.den - i_start_time;
+            p_stream->time_base.den;
 
     if( pkt.dts != AV_NOPTS_VALUE && pkt.dts == pkt.pts &&
         p_stream->codec->codec_type == CODEC_TYPE_VIDEO )
     {
         /* Add here notoriously bugged file formats/samples regarding PTS */
         if( !strcmp( p_sys->fmt->name, "flv" ) )
-            p_frame->i_pts = 0;
+            p_frame->i_pts = VLC_TS_INVALID;
     }
 #ifdef AVFORMAT_DEBUG
     msg_Dbg( p_demux, "tk[%d] dts=%"PRId64" pts=%"PRId64,
              pkt.stream_index, p_frame->i_dts, p_frame->i_pts );
 #endif
 
-    if( pkt.dts > 0  &&
+    if( p_frame->i_dts > VLC_TS_INVALID  &&
         ( pkt.stream_index == p_sys->i_pcr_tk || p_sys->i_pcr_tk < 0 ) )
     {
         p_sys->i_pcr_tk = pkt.stream_index;
@@ -508,6 +606,40 @@ static void UpdateSeekPoint( demux_t *p_demux, int64_t i_time )
     }
 }
 
+static block_t *BuildSsaFrame( const AVPacket *p_pkt, unsigned i_order )
+{
+    if( p_pkt->size <= 0 )
+        return NULL;
+
+    char buffer[256];
+    const size_t i_buffer_size = __MIN( sizeof(buffer) - 1, p_pkt->size );
+    memcpy( buffer, p_pkt->data, i_buffer_size );
+    buffer[i_buffer_size] = '\0';
+
+    /* */
+    int i_layer;
+    int h0, m0, s0, c0;
+    int h1, m1, s1, c1;
+    int i_position = 0;
+    if( sscanf( buffer, "Dialogue: %d,%d:%d:%d.%d,%d:%d:%d.%d,%n", &i_layer,
+                &h0, &m0, &s0, &c0, &h1, &m1, &s1, &c1, &i_position ) < 9 )
+        return NULL;
+    if( i_position <= 0 || i_position >= i_buffer_size )
+        return NULL;
+
+    char *p;
+    if( asprintf( &p, "%u,%d,%.*s", i_order, i_layer, p_pkt->size - i_position, p_pkt->data + i_position ) < 0 )
+        return NULL;
+
+    block_t *p_frame = block_heap_Alloc( p, p, strlen(p) + 1 );
+    if( p_frame )
+        p_frame->i_length = CLOCK_FREQ * ((h1 - h1) * 3600 +
+                                          (m1-m0) * 60 +
+                                          (s1-s0) * 1) +
+                            CLOCK_FREQ * (c1-c0) / 100;
+    return p_frame;
+}
+
 /*****************************************************************************
  * Control:
  *****************************************************************************/
@@ -568,10 +700,9 @@ static int Control( demux_t *p_demux, int i_query, va_list args )
         case DEMUX_GET_LENGTH:
             pi64 = (int64_t*)va_arg( args, int64_t * );
             if( p_sys->ic->duration != (int64_t)AV_NOPTS_VALUE )
-            {
-                *pi64 = p_sys->ic->duration;
-            }
-            else *pi64 = 0;
+                *pi64 = p_sys->ic->duration * 1000000 / AV_TIME_BASE;
+            else
+                *pi64 = 0;
             return VLC_SUCCESS;
 
         case DEMUX_GET_TIME: