fixed build issues with FFMpeg AVCodec version >=59 changes (#636)

* fixed build issues with FFMpeg AVCodec version >=59 changes

* fixed mistake of pushing stashed change

---------

Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com>

src/rocdecode-host/avcodec/avcodec_videodecoder.cpp

@@ -387,7 +387,11 @@ rocDecStatus AvcodecVideoDecoder::NotifyNewSequence(AVFrame *p_frame) {
     p_video_format->frame_rate.denominator = dec_context_->framerate.den;
     p_video_format->bit_depth_luma_minus8 = BitDepthFromPixelFormat(dec_context_->pix_fmt) - 8;
     p_video_format->bit_depth_chroma_minus8 = p_video_format->bit_depth_luma_minus8;
-    p_video_format->progressive_sequence = !p_frame->interlaced_frame;
+#if USE_AVCODEC_GREATER_THAN_58_134
+    p_video_format->progressive_sequence = !(p_frame->flags & AV_FRAME_FLAG_INTERLACED);
+#else
+    p_video_format->progressive_sequence = !!p_frame->interlaced_frame;;
+#endif
     //number of decode surfaces are internal and not exposed in avcodec based decoding. Setting some value for sanity
     p_video_format->min_num_decode_surfaces = dec_frames_.size();
     p_video_format->coded_width = p_frame->linesize[0];

utils/video_demuxer.h

@@ -462,7 +462,11 @@ class VideoDemuxer {
                         || !strcmp(av_fmt_input_ctx_->iformat->long_name, "Matroska / WebM"));
 
             // Check if the input file allow seek functionality.
+#if USE_AVCODEC_GREATER_THAN_58_134
+            is_seekable_ = true;    //for latest version of FFMPeg, read_seek and read_seek2 is not exposed in AVFormatContext
+#else            
             is_seekable_ = av_fmt_input_ctx_->iformat->read_seek || av_fmt_input_ctx_->iformat->read_seek2;
+#endif            
 
             if (is_h264_) {
                 const AVBitStreamFilter *bsf = av_bsf_get_by_name("h264_mp4toannexb");