[mpp]: change mpi_get_frame return value meaning:

return MPP_NOK means flow error
return MPP_OK does not mean there is available frame, need to check the MppFrame pointer
[mpp_dec_test]: reduce buffer size on reading to avoid one packet multiple frame input.

git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@930 6e48237b-75ef-9749-8fc9-41990f28c85a

mpp/legacy/vpu_api_legacy.cpp

@@ -128,28 +128,35 @@ RK_S32 VpuApi::decode(VpuCodecContext *ctx, VideoPacket_t *pkt, DecoderOut_t *aD
 
 RK_S32 VpuApi::decode_sendstream(VideoPacket_t *pkt)
 {
-    //mpp_log_f("in\n");
+    RK_S32 ret;
     MppPacket mpkt = NULL;
+
     mpp_packet_init(&mpkt, pkt->data, pkt->size);
     mpp_packet_set_pts(mpkt, pkt->pts);
     if (pkt->nFlags & OMX_BUFFERFLAG_EOS) {
-        mpp_err("decode_sendstream set eos");
+        mpp_log("decode_sendstream set eos");
         mpp_packet_set_eos(mpkt);
     }
-    if (mpi->decode_put_packet(mpp_ctx, mpkt) == MPP_OK) {
+
+    ret = mpi->decode_put_packet(mpp_ctx, mpkt);
+
+    if (ret == MPP_OK) {
         pkt->size = 0;
+    } else {
+        mpp_err("decode_put_packet ret %d\n", ret);
     }
     mpp_packet_deinit(&mpkt);
-    // mpp_log_f("ok\n");
-    return 0;
+    return ret;
 }
 
 RK_S32 VpuApi:: decode_getoutframe(DecoderOut_t *aDecOut)
 {
-    // mpp_log_f("in\n");
+    RK_S32 ret = 0;
     VPU_FRAME *vframe = (VPU_FRAME *)aDecOut->data;
-    memset(vframe, 0, sizeof(VPU_FRAME));
     MppFrame  mframe = NULL;
+
+    memset(vframe, 0, sizeof(VPU_FRAME));
+
     if (NULL == mpi) {
         aDecOut->size = 0;
         return 0;
@@ -158,7 +165,11 @@ RK_S32 VpuApi:: decode_getoutframe(DecoderOut_t *aDecOut)
         aDecOut->size = 0;
         return VPU_API_EOS_STREAM_REACHED;
     }
-    if (MPP_OK == mpi->decode_get_frame(mpp_ctx, &mframe)) {
+
+    ret = mpi->decode_get_frame(mpp_ctx, &mframe);
+    if (ret || NULL == mframe) {
+        aDecOut->size = 0;
+    } else {
         MppBuffer buf = NULL;
         RK_U64 pts = 0;
         RK_U32 fd = 0;
@@ -268,12 +279,9 @@ RK_S32 VpuApi:: decode_getoutframe(DecoderOut_t *aDecOut)
          */
         mpp_frame_set_buffer(mframe, NULL);
         mpp_frame_deinit(&mframe);
-    } else {
-        aDecOut->size = 0;
     }
 
-    // mpp_log_f("ok\n");
-    return 0;
+    return ret;
 }
 
 RK_S32 VpuApi::encode(VpuCodecContext *ctx, EncInputStream_t *aEncInStrm, EncoderOut_t *aEncOut)

mpp/mpp.cpp

@@ -226,10 +226,9 @@ MPP_RET Mpp::get_frame(MppFrame *frame)
                 prev = next;
             }
         }
-        *frame = first;
-        return MPP_OK;
     }
-    return MPP_NOK;
+    *frame = first;
+    return MPP_OK;
 }
 
 MPP_RET Mpp::put_frame(MppFrame frame)

test/mpi_dec_test.c

@@ -31,7 +31,7 @@
 #include "utils.h"
 
 #define MPI_DEC_LOOP_COUNT          4
-#define MPI_STREAM_SIZE             (SZ_512K)
+#define MPI_DEC_STREAM_SIZE         (SZ_64K)
 #define MAX_FILE_NAME_LENGTH        256
 
 typedef struct {
@@ -81,8 +81,9 @@ int mpi_dec_test(MpiDecTestCmd *cmd)
 
     // resources
     char *buf           = NULL;
-    size_t packet_size  = MPI_STREAM_SIZE;
+    size_t packet_size  = MPI_DEC_STREAM_SIZE;
     size_t read_size    = 0;
+    RK_U32 frame_count  = 0;
 
     mpp_log("mpi_dec_test start\n");
 
@@ -141,7 +142,6 @@ int mpi_dec_test(MpiDecTestCmd *cmd)
 
     while (!found_eos) {
         read_size = fread(buf, 1, packet_size, fp_input);
-        mpp_log("read packet length %u\n", read_size);
         if (read_size != packet_size || feof(fp_input)) {
             mpp_log("found last packet\n");
             found_eos = 1;
@@ -157,6 +157,7 @@ int mpi_dec_test(MpiDecTestCmd *cmd)
 
         ret = mpi->decode_put_packet(ctx, packet);
         if (MPP_OK != ret) {
+            mpp_err("decode_put_packet failed ret %d\n", ret);
             goto MPP_TEST_OUT;
         }
 
@@ -164,6 +165,7 @@ int mpi_dec_test(MpiDecTestCmd *cmd)
 
         ret = mpi->decode_get_frame(ctx, &frame);
         if (MPP_OK != ret) {
+            mpp_err("decode_get_frame failed ret %d\n", ret);
             goto MPP_TEST_OUT;
         }
 
@@ -172,6 +174,7 @@ int mpi_dec_test(MpiDecTestCmd *cmd)
                 mpp_log("decode_get_frame get info changed found\n");
                 mpi->control(ctx, MPP_CODEC_SET_INFO_CHANGE_READY, NULL);
             } else {
+                mpp_log("decode_get_frame get frame %d\n", frame_count++);
                 if (fp_output)
                     dump_mpp_frame_to_file(frame, fp_output);
             }