mirror of https://git.ffmpeg.org/ffmpeg.git
Print error message when true interlaced VC-1 frames are encountered
to inform user why decoder produces no output. Originally committed as revision 20196 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -781,7 +781,11 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
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if(v->interlace){
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if(v->interlace){
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v->fcm = decode012(gb);
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v->fcm = decode012(gb);
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if(v->fcm) return -1; // interlaced frames/fields are not implemented
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if(v->fcm){
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if(!v->warn_interlaced++)
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av_log(v->s.avctx, AV_LOG_ERROR, "Interlaced frames/fields support is not implemented\n");
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return -1;
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}
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}
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}
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switch(get_unary(gb, 0, 4)) {
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switch(get_unary(gb, 0, 4)) {
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case 0:
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case 0:
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@ -312,6 +312,8 @@ typedef struct VC1Context{
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uint8_t closed_entry; ///< Closed entry point flag (CLOSED_ENTRY syntax element)
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uint8_t closed_entry; ///< Closed entry point flag (CLOSED_ENTRY syntax element)
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int parse_only; ///< Context is used within parser
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int parse_only; ///< Context is used within parser
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int warn_interlaced;
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} VC1Context;
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} VC1Context;
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/** Find VC-1 marker in buffer
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/** Find VC-1 marker in buffer
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