Smarter check for failed packet parsing in RM. Also fixes a bug in playback where sometimes "codec failure" is splashed at the end of playback.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22880 a1c6a512-1295-4272-9138-f99709370657

apps/codecs/a52_rm.c

@@ -131,6 +131,7 @@ enum codec_status codec_main(void)
     size_t n;
     uint8_t *filebuf;
     int retval, consumed, packet_offset;
+    int playback_on = -1;  
 
     /* Generic codec initialisation */
     ci->configure(DSP_SET_STEREO_MODE, STEREO_NONINTERLEAVED);
@@ -173,10 +174,20 @@ next_track:
 
         filebuf = ci->request_buffer(&n, rmctx.block_align + PACKET_HEADER_SIZE);
         consumed = rm_get_packet(&filebuf, &rmctx, &pkt);
-        if(consumed < 0) {
+
-            DEBUGF("rm_get_packet failed\n");
+        if(consumed < 0 && playback_on != 0) {
-            return CODEC_ERROR;
+            if(playback_on == -1) {
+            /* Error only if packet-parsing failed and playback hadn't started */
+                DEBUGF("rm_get_packet failed\n");
+                return CODEC_ERROR;
+            }
+            else {
+                retval = CODEC_OK;
+                goto exit;
+            }
         }
+
+        playback_on = 1;
         a52_decode_data(filebuf, filebuf + rmctx.block_align);
         ci->advance_buffer(pkt.length);
     }

apps/codecs/atrac3_rm.c

@@ -44,6 +44,7 @@ enum codec_status codec_main(void)
     uint16_t fs,sps,h;
     uint32_t packet_count;
     int scrambling_unit_size, num_units, elapsed = 0;
+    int playback_on = -1;
 
 next_track:
     if (codec_init()) {
@@ -88,9 +89,14 @@ seek_start :
     {  
         bit_buffer = (uint8_t *) ci->request_buffer(&buff_size, scrambling_unit_size);
         consumed = rm_get_packet(&bit_buffer, &rmctx, &pkt);
-        if(consumed < 0) {
+        if(consumed < 0 && playback_on != 0) {
-            DEBUGF("rm_get_packet failed\n");
+            if(playback_on == -1) {
-            return CODEC_ERROR;
+            /* Error only if packet-parsing failed and playback hadn't started */
+                DEBUGF("rm_get_packet failed\n");
+                return CODEC_ERROR;
+            }
+            else
+                goto done;
         }
        
         for(i = 0; i < rmctx.audio_pkt_cnt*(fs/sps) ; i++)
@@ -123,10 +129,16 @@ seek_start :
                 ci->seek_buffer(rmctx.data_offset + DATA_HEADER_SIZE + consumed * num_units);
                 bit_buffer = (uint8_t *) ci->request_buffer(&buff_size, scrambling_unit_size);
                 consumed = rm_get_packet(&bit_buffer, &rmctx, &pkt);
-                if(consumed < 0) {
+                if(consumed < 0 && playback_on != 0) {
-                     DEBUGF("rm_get_packet failed\n");
+                    if(playback_on == -1) {
-                     return CODEC_ERROR;
+                    /* Error only if packet-parsing failed and playback hadn't started */
+                        DEBUGF("rm_get_packet failed\n");
+                        return CODEC_ERROR;
+                    }
+                    else
+                        goto done;
                 }
+
                 packet_count = rmctx.nb_packets - rmctx.audio_pkt_cnt * num_units;
                 rmctx.frame_number = ((ci->seek_time)/(sps*1000*8/rmctx.bit_rate)); 
                 while(rmctx.audiotimestamp > (unsigned) ci->seek_time) {
@@ -155,6 +167,7 @@ seek_start :
 
             if(datasize)
                 ci->pcmbuf_insert(q.outSamples, q.outSamples + 1024, q.samples_per_frame / rmctx.nb_channels);
+            playback_on = 1;
             elapsed = rmctx.audiotimestamp+(1000*8*sps/rmctx.bit_rate)*i;
             ci->set_elapsed(elapsed);
             rmctx.frame_number++;

apps/codecs/raac.c

@@ -47,6 +47,8 @@ enum codec_status codec_main(void)
     int err, consumed, pkt_offset, skipped = 0;
     uint32_t s = 0; /* sample rate */
     unsigned char c = 0; /* channels */
+    int playback_on = -1;
+
     /* Generic codec initialisation */
     ci->configure(DSP_SET_STEREO_MODE, STEREO_INTERLEAVED);
     ci->configure(DSP_SET_SAMPLE_DEPTH, 16);
@@ -123,9 +125,14 @@ seek_start:
                 buffer = ci->request_buffer(&n,rmctx.audio_framesize + 1000);               
                 pkt_offset = skipped - pkt.length;
                 consumed = rm_get_packet(&buffer, &rmctx, &pkt);
-                if(consumed < 0) {
+                if(consumed < 0 && playback_on != 0) {
-                     DEBUGF("rm_get_packet failed\n");
+                    if(playback_on == -1) {
-                     return CODEC_ERROR;
+                    /* Error only if packet-parsing failed and playback hadn't started */
+                        DEBUGF("rm_get_packet failed\n");
+                        return CODEC_ERROR;
+                    }
+                    else
+                        goto done;
                 }
                 skipped += pkt.length;
                 if(pkt.timestamp > (unsigned)ci->seek_time) break;                
@@ -139,11 +146,18 @@ seek_start:
         /* Request the required number of bytes from the input buffer */ 
         buffer=ci->request_buffer(&n,rmctx.audio_framesize + 1000);        
         consumed = rm_get_packet(&buffer, &rmctx, &pkt);
-        if(consumed < 0) {
+
-             DEBUGF("rm_get_packet failed\n");
+        if(consumed < 0 && playback_on != 0) {
-             return CODEC_ERROR;
+            if(playback_on == -1) {
+            /* Error only if packet-parsing failed and playback hadn't started */
+                DEBUGF("rm_get_packet failed\n");
+                return CODEC_ERROR;
+            }
+            else
+                goto done;
         }
         
+        playback_on = 1;
         if (pkt.timestamp >= ci->id3->length)
             goto done;
         /* Decode one block - returned samples will be host-endian */