It is an OpenDML extension that contains the aspect ratio (it closes #6777).
break;
case( AVIFOURCC_vids ):
+ {
tk->i_cat = VIDEO_ES;
tk->i_codec = AVI_FourccGetCodec( VIDEO_ES,
p_vids->p_bih->biCompression );
fmt.video.i_bits_per_pixel = p_vids->p_bih->biBitCount;
fmt.video.i_frame_rate = tk->i_rate;
fmt.video.i_frame_rate_base = tk->i_scale;
+ avi_chunk_vprp_t *p_vprp = AVI_ChunkFind( p_strl, AVIFOURCC_vprp, 0 );
+ if( p_vprp )
+ {
+ uint32_t i_frame_aspect_ratio = p_vprp->i_frame_aspect_ratio;
+ if( p_vprp->i_video_format_token >= 1 &&
+ p_vprp->i_video_format_token <= 4 )
+ i_frame_aspect_ratio = 0x00040003;
+ fmt.video.i_sar_num = ((i_frame_aspect_ratio >> 16) & 0xffff) * fmt.video.i_height;
+ fmt.video.i_sar_den = ((i_frame_aspect_ratio >> 0) & 0xffff) * fmt.video.i_width;
+ }
fmt.i_extra =
__MAX( p_vids->p_bih->biSize - sizeof( VLC_BITMAPINFOHEADER ),
p_vids->i_chunk_size - sizeof(VLC_BITMAPINFOHEADER) );
}
}
break;
+ }
case( AVIFOURCC_txts):
msg_Dbg( p_demux, "stream[%d] subtitle attachment", i );
FREENULL( p_indx->idx.super );
}
+static int AVI_ChunkRead_vprp( stream_t *s, avi_chunk_t *p_chk )
+{
+ avi_chunk_vprp_t *p_vprp = (avi_chunk_vprp_t*)p_chk;
+
+ AVI_READCHUNK_ENTER;
+
+ AVI_READ4BYTES( p_vprp->i_video_format_token );
+ AVI_READ4BYTES( p_vprp->i_video_standard );
+ AVI_READ4BYTES( p_vprp->i_vertical_refresh );
+ AVI_READ4BYTES( p_vprp->i_h_total_in_t );
+ AVI_READ4BYTES( p_vprp->i_v_total_in_lines );
+ AVI_READ4BYTES( p_vprp->i_frame_aspect_ratio );
+ AVI_READ4BYTES( p_vprp->i_frame_width_in_pixels );
+ AVI_READ4BYTES( p_vprp->i_frame_height_in_pixels );
+ AVI_READ4BYTES( p_vprp->i_nb_fields_per_frame );
+ for( unsigned i = 0; i < __MIN( p_vprp->i_nb_fields_per_frame, 2 ); i++ )
+ {
+ AVI_READ4BYTES( p_vprp->field_info[i].i_compressed_bm_height );
+ AVI_READ4BYTES( p_vprp->field_info[i].i_compressed_bm_width );
+ AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_height );
+ AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_width );
+ AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_x_offset );
+ AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_y_offset );
+ AVI_READ4BYTES( p_vprp->field_info[i].i_video_x_offset_in_t );
+ AVI_READ4BYTES( p_vprp->field_info[i].i_video_y_valid_start_line );
+ }
+#ifdef AVI_DEBUG
+ msg_Dbg( (vlc_object_t*)s, "vprp: format:%d standard:%d",
+ p_vprp->i_video_format_token, p_vprp->i_video_standard );
+#endif
+ AVI_READCHUNK_EXIT( VLC_SUCCESS );
+}
static const struct
{
{ AVIFOURCC_strd, AVI_ChunkRead_strd, AVI_ChunkFree_strd },
{ AVIFOURCC_idx1, AVI_ChunkRead_idx1, AVI_ChunkFree_idx1 },
{ AVIFOURCC_indx, AVI_ChunkRead_indx, AVI_ChunkFree_indx },
+ { AVIFOURCC_vprp, AVI_ChunkRead_vprp, AVI_ChunkFree_nothing },
{ AVIFOURCC_JUNK, AVI_ChunkRead_nothing, AVI_ChunkFree_nothing },
{ AVIFOURCC_IARL, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
uint8_t *p_data;
} avi_chunk_strd_t;
+typedef struct avi_chunk_vprp_s
+{
+ AVI_CHUNK_COMMON
+ uint32_t i_video_format_token;
+ uint32_t i_video_standard;
+ uint32_t i_vertical_refresh;
+ uint32_t i_h_total_in_t;
+ uint32_t i_v_total_in_lines;
+ uint32_t i_frame_aspect_ratio;
+ uint32_t i_frame_width_in_pixels;
+ uint32_t i_frame_height_in_pixels;
+ uint32_t i_nb_fields_per_frame;
+ struct
+ {
+ uint32_t i_compressed_bm_height;
+ uint32_t i_compressed_bm_width;
+ uint32_t i_valid_bm_height;
+ uint32_t i_valid_bm_width;
+ uint32_t i_valid_bm_x_offset;
+ uint32_t i_valid_bm_y_offset;
+ uint32_t i_video_x_offset_in_t;
+ uint32_t i_video_y_valid_start_line;
+ } field_info[2];
+
+} avi_chunk_vprp_t;
+
#define AVI_INDEX_OF_INDEXES 0x00
#define AVI_INDEX_OF_CHUNKS 0x01
avi_chunk_strh_t strh;
avi_chunk_strf_t strf;
avi_chunk_strd_t strd;
+ avi_chunk_vprp_t vprp;
avi_chunk_indx_t indx;
avi_chunk_STRING_t strz;
} avi_chunk_t;
#define AVIFOURCC_strd VLC_FOURCC('s','t','r','d')
#define AVIFOURCC_strn VLC_FOURCC('s','t','r','n')
#define AVIFOURCC_indx VLC_FOURCC('i','n','d','x')
+#define AVIFOURCC_vprp VLC_FOURCC('v','p','r','p')
#define AVIFOURCC_rec VLC_FOURCC('r','e','c',' ')
#define AVIFOURCC_auds VLC_FOURCC('a','u','d','s')