interp bilinear fix

[goodguy/history.git] / cinelerra-5.1 / cinelerra / ffmpeg.C

diff --git a/cinelerra-5.1/cinelerra/ffmpeg.C b/cinelerra-5.1/cinelerra/ffmpeg.C
index dcbb49c63d4eeee18333df5bbacac178112e0d39..511d37dd58944ea94f5f001c84639fb88083216a 100644 (file)
--- a/cinelerra-5.1/cinelerra/ffmpeg.C
+++ b/cinelerra-5.1/cinelerra/ffmpeg.C
@@ -33,6 +33,7 @@
 #define AUDIO_INBUF_SIZE 0x10000
 #define VIDEO_REFILL_THRESH 0
 #define AUDIO_REFILL_THRESH 0x1000
+#define AUDIO_MIN_FRAME_SZ 128
 
 Mutex FFMPEG::fflock("FFMPEG::fflock");
 
@@ -588,6 +589,7 @@ FFAudioStream::FFAudioStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
        channel0 = channels = 0;
        sample_rate = 0;
        mbsz = 0;
+       frame_sz = AUDIO_MIN_FRAME_SZ;
        length = 0;
        resample_context = 0;
        swr_ichs = swr_ifmt = swr_irate = 0;
@@ -732,14 +734,13 @@ int FFAudioStream::load(int64_t pos, int len)
        }
        if( mbsz < len ) mbsz = len;
        int64_t end_pos = pos + len;
-       int ret = 0;
-       for( int i=0; ret>=0 && !flushed && curr_pos<end_pos && i<MAX_RETRY; ++i ) {
+       int ret = 0, i = len / frame_sz + MAX_RETRY;
+       while( ret>=0 && !flushed && curr_pos<end_pos && --i>=0 ) {
                ret = read_frame(frame);
-               if( ret > 0 ) {
+               if( ret > 0 && frame->nb_samples > 0 ) {
                        init_swr(frame->channels, frame->format, frame->sample_rate);
                        load_history(&frame->extended_data[0], frame->nb_samples);
                        curr_pos += frame->nb_samples;
-                       i = 0;
                }
        }
        if( end_pos > curr_pos ) {
@@ -867,9 +868,10 @@ int FFVideoStream::load(VFrame *vframe, int64_t pos)
                fprintf(stderr, "FFVideoStream::load: av_frame_alloc failed\n");
                return -1;
        }
-       for( int i=0; ret>=0 && !flushed && curr_pos<=pos && i<MAX_RETRY; ++i ) {
+       int i = MAX_RETRY + pos - curr_pos;
+       while( ret>=0 && !flushed && curr_pos<=pos && --i>=0 ) {
                ret = read_frame(frame);
-               if( ret > 0 ) { ++curr_pos;  i = 0; }
+               if( ret > 0 ) ++curr_pos;
        }
        if( frame->format == AV_PIX_FMT_NONE || frame->width <= 0 || frame->height <= 0 )
                ret = -1;
@@ -2113,7 +2115,8 @@ int FFMPEG::decode_activate()
                                if( st->start_time == AV_NOPTS_VALUE ) continue;
                                int vidx = ffvideo.size();
                                while( --vidx >= 0 && ffvideo[vidx]->fidx != i );
-                               if( vidx >= 0 && ffvideo[vidx]->nudge != AV_NOPTS_VALUE ) continue;
+                               if( vidx < 0 ) continue;
+                               if( ffvideo[vidx]->nudge != AV_NOPTS_VALUE ) continue;
                                if( vstart_time < st->start_time )
                                        vstart_time = st->start_time;
                                break; }
@@ -2121,7 +2124,10 @@ int FFMPEG::decode_activate()
                                if( st->start_time == AV_NOPTS_VALUE ) continue;
                                int aidx = ffaudio.size();
                                while( --aidx >= 0 && ffaudio[aidx]->fidx != i );
-                               if( aidx >= 0 && ffaudio[aidx]->nudge != AV_NOPTS_VALUE ) continue;
+                               if( aidx < 0 ) continue;
+                               if( ffaudio[aidx]->frame_sz < avpar->frame_size )
+                                       ffaudio[aidx]->frame_sz = avpar->frame_size;
+                               if( ffaudio[aidx]->nudge != AV_NOPTS_VALUE ) continue;
                                if( astart_time < st->start_time )
                                        astart_time = st->start_time;
                                break; }