fix #635, hls support NonIDR(open gop). 2.0.226

@@ -345,6 +345,7 @@ Remark:
 
 ## History
 
+* v2.0, 2017-01-10, fix [#635][bug #635], hls support NonIDR(open gop). 2.0.226
 * v2.0, 2017-01-06, for [#730][bug #730], reset ack follow flash player rules. 2.0.225
 * v2.0, 2016-12-15, for [#513][bug #513], remove hls ram from srs2 to srs3+. 2.0.224
 * <strong>v2.0, 2016-12-13, [2.0 beta3(2.0.223)][r2.0b3] released. 86685 lines.</strong>
@@ -1268,6 +1269,7 @@ Winlin
 [bug #713]: https://github.com/ossrs/srs/issues/713
 [bug #513]: https://github.com/ossrs/srs/issues/513
 [bug #730]: https://github.com/ossrs/srs/issues/730
+[bug #635]: https://github.com/ossrs/srs/issues/635
 [bug #xxxxxxxxxx]: https://github.com/ossrs/srs/issues/xxxxxxxxxx
 
 [exo #828]: https://github.com/google/ExoPlayer/pull/828

@@ -1070,8 +1070,8 @@ int SrsHlsCache::write_video(SrsAvcAacCodec* codec, SrsHlsMuxer* muxer, int64_t
         //      a. wait keyframe and got keyframe.
         //      b. always reap when not wait keyframe.
         if (!muxer->wait_keyframe() || sample->frame_type == SrsCodecVideoAVCFrameKeyFrame) {
-            // when wait keyframe, there must exists idr frame in sample.
-            if (!sample->has_idr && muxer->wait_keyframe()) {
+            // when wait keyframe, there must exists idr frame in sample, or NonIDR(open gop) specified.
+            if (!sample->has_non_idr && !sample->has_idr && muxer->wait_keyframe()) {
                 srs_warn("hls: ts starts without IDR, first nalu=%d, idr=%d", sample->first_nalu_type, sample->has_idr);
             }
             

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       2
 #define VERSION_MINOR       0
-#define VERSION_REVISION    225
+#define VERSION_REVISION    226
 
 // generated by configure, only macros.
 #include <srs_auto_headers.hpp>

@@ -339,7 +339,7 @@ void SrsCodecSample::clear()
     cts = 0;
     frame_type = SrsCodecVideoAVCFrameReserved;
     avc_packet_type = SrsCodecVideoAVCTypeReserved;
-    has_idr = false;
+    has_aud = has_sei = has_non_idr = has_idr = false;
     first_nalu_type = SrsAvcNaluTypeReserved;
     
     acodec = SrsCodecAudioReserved1;
@@ -370,6 +370,12 @@ int SrsCodecSample::add_sample_unit(char* bytes, int size)
         
         if (nal_unit_type == SrsAvcNaluTypeIDR) {
             has_idr = true;
+        } else if (nal_unit_type == SrsAvcNaluTypeNonIDR) {
+            has_non_idr = true;
+        } else if (nal_unit_type == SrsAvcNaluTypeSEI) {
+            has_sei = true;
+        } else if (nal_unit_type == SrsAvcNaluTypeAccessUnitDelimiter) {
+            has_aud = true;
         }
     
         if (first_nalu_type == SrsAvcNaluTypeReserved) {

@@ -385,6 +385,13 @@ public:
     SrsCodecVideoAVCType avc_packet_type;
     // whether sample_units contains IDR frame.
     bool has_idr;
+    // Whether exists NonIDR NALU.
+    bool has_non_idr;
+    // Whether exists SEI NALU.
+    bool has_sei;
+    // Whether exists AUD NALU.
+    bool has_aud;
+    // The first nalu type.
     SrsAvcNaluType first_nalu_type;
 public:
     // audio specified

@@ -3009,6 +3009,32 @@ int SrsTsCache::do_cache_avc(SrsAvcAacCodec* codec, SrsCodecSample* sample)
     // H.264-AVC-ISO_IEC_14496-10-2012.pdf, page 105.
     static u_int8_t aud_nalu_7[] = { 0x09, 0xf0};
     
+    // For NonIDR(open gop), we directly appends all frames.
+    if (sample->has_non_idr || (sample->has_aud && sample->has_sei)) {
+        for (int i = 0; i < sample->nb_sample_units; i++) {
+            SrsCodecSampleUnit* sample_unit = &sample->sample_units[i];
+            int32_t size = sample_unit->size;
+            
+            if (!sample_unit->bytes || size <= 0) {
+                ret = ERROR_HLS_AVC_SAMPLE_SIZE;
+                srs_error("invalid avc sample length=%d, ret=%d", size, ret);
+                return ret;
+            }
+            
+            // insert nalu header before rbsp.
+            if (i == 0) {
+                video->payload->append((const char*)fresh_nalu_header, 4);
+            } else {
+                video->payload->append((const char*)cont_nalu_header, 3);
+            }
+            
+            // sample data
+            video->payload->append(sample_unit->bytes, sample_unit->size);
+        }
+        
+        return ret;
+    }
+    
     // always append a aud nalu for each frame.
     video->payload->append((const char*)fresh_nalu_header, 4);
     video->payload->append((const char*)aud_nalu_7, 2);