test/encode/avcenc: a simple encoder based on VA API for H.264

Usage:
avcenc <width> <height> <input file> <output file> [qp]
Singed-off-by: Zhou Chang <chang.zhou@intel.com>
Singed-off-by: Lan Hai <hai.lan@intel.com>
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>

test/encode/Makefile.am

@@ -20,7 +20,7 @@
 # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-bin_PROGRAMS = h264encode
+bin_PROGRAMS = h264encode avcenc
 
 AM_CFLAGS = -I$(top_srcdir)/va -I$(top_srcdir)/src/x11
 
@@ -29,6 +29,8 @@ TEST_LIBS = $(top_builddir)/va/$(libvabackendlib)
 h264encode_LDADD = $(TEST_LIBS)
 h264encode_SOURCES = h264encode.c
 
+avcenc_LDADD= $(TEST_LIBS)
+avcenc_SOURCES= avcenc.c
 
 valgrind:	$(bin_PROGRAMS)
 	for a in $(bin_PROGRAMS); do \

test/encode/avcenc.c

+/*
+ * Simple AVC encoder based on libVA.
+ *
+ * Usage:
+ * ./avcenc <width> <height> <input file> <output file> [qp]
+ */  
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <X11/Xlib.h>
+
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <pciaccess.h>
+#include <assert.h>
+#include <time.h>
+
+#include <va/va.h>
+#include <va/va_x11.h>
+
+#define NAL_REF_IDC_NONE        0
+#define NAL_REF_IDC_LOW         1
+#define NAL_REF_IDC_MEDIUM      2
+#define NAL_REF_IDC_HIGH        3
+
+#define NAL_NON_IDR             1
+#define NAL_IDR                 5
+#define NAL_SPS                 7
+#define NAL_PPS                 8
+
+#define SLICE_TYPE_P            0
+#define SLICE_TYPE_B            1
+#define SLICE_TYPE_I            2
+
+#define ENTROPY_MODE_CAVLC      0
+#define ENTROPY_MODE_CABAC      1
+
+#define PROFILE_IDC_BASELINE    66
+#define PROFILE_IDC_MAIN        77
+#define PROFILE_IDC_HIGH        100
+
+#define CHECK_VASTATUS(va_status,func)                                  \
+    if (va_status != VA_STATUS_SUCCESS) {                               \
+        fprintf(stderr,"%s:%s (%d) failed,exit\n", __func__, func, __LINE__); \
+        exit(1);                                                        \
+    }
+
+static Display *x11_display;
+static VADisplay va_dpy;
+static VAContextID context_id;
+static VAConfigID config_id;
+
+static int picture_width;
+static int picture_height;
+static int frame_size;
+static unsigned char *newImageBuffer = 0;
+static int codedbuf_size;
+
+static int qp_value = 26;
+
+static int log2_max_frame_num_minus4 = 0;
+static int pic_order_cnt_type = 0;
+static int log2_max_pic_order_cnt_lsb_minus4 = 0;
+static int entropy_coding_mode_flag = ENTROPY_MODE_CABAC;
+static int deblocking_filter_control_present_flag = 1;
+static int frame_mbs_only_flag = 1;
+
+static void create_encode_pipe()
+{
+    VAEntrypoint entrypoints[5];
+    int num_entrypoints,slice_entrypoint;
+    VAConfigAttrib attrib[2];
+    int major_ver, minor_ver;
+    VAStatus va_status;
+
+    x11_display = XOpenDisplay(":0.0");
+    assert(x11_display);
+
+    va_dpy = vaGetDisplay(x11_display);
+    va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
+    CHECK_VASTATUS(va_status, "vaInitialize");
+
+    vaQueryConfigEntrypoints(va_dpy, VAProfileH264Baseline, entrypoints, 
+                             &num_entrypoints);
+
+    for	(slice_entrypoint = 0; slice_entrypoint < num_entrypoints; slice_entrypoint++) {
+        if (entrypoints[slice_entrypoint] == VAEntrypointEncSlice)
+            break;
+    }
+
+    if (slice_entrypoint == num_entrypoints) {
+        /* not find Slice entry point */
+        assert(0);
+    }
+
+    /* find out the format for the render target, and rate control mode */
+    attrib[0].type = VAConfigAttribRTFormat;
+    attrib[1].type = VAConfigAttribRateControl;
+    vaGetConfigAttributes(va_dpy, VAProfileH264Baseline, VAEntrypointEncSlice,
+                          &attrib[0], 2);
+
+    if ((attrib[0].value & VA_RT_FORMAT_YUV420) == 0) {
+        /* not find desired YUV420 RT format */
+        assert(0);
+    }
+
+    if ((attrib[1].value & VA_RC_VBR) == 0) {
+        /* Can't find matched RC mode */
+        printf("VBR mode doesn't found, exit\n");
+        assert(0);
+    }
+
+    attrib[0].value = VA_RT_FORMAT_YUV420; /* set to desired RT format */
+    attrib[1].value = VA_RC_VBR; /* set to desired RC mode */
+
+    va_status = vaCreateConfig(va_dpy, VAProfileH264Baseline, VAEntrypointEncSlice,
+                               &attrib[0], 2,&config_id);
+    CHECK_VASTATUS(va_status, "vaCreateConfig");
+
+    /* Create a context for this decode pipe */
+    va_status = vaCreateContext(va_dpy, config_id,
+                                picture_width, picture_height,
+                                VA_PROGRESSIVE, 
+                                0, 0,
+                                &context_id);
+    CHECK_VASTATUS(va_status, "vaCreateContext");
+}
+
+static void destory_encode_pipe()
+{
+    vaDestroyContext(va_dpy,context_id);
+    vaDestroyConfig(va_dpy,config_id);
+    vaTerminate(va_dpy);
+    XCloseDisplay(x11_display);
+}
+
+/***************************************************
+ *
+ *  The encode pipe resource define 
+ *
+ ***************************************************/
+static VABufferID seq_parameter = VA_INVALID_ID;                /*Sequence level parameter*/
+static VABufferID pic_parameter = VA_INVALID_ID;                /*Picture level parameter*/
+static VABufferID slice_parameter = VA_INVALID_ID;              /*Slice level parameter, multil slices*/
+
+static VABufferID coded_buf;                                    /*Output buffer, compressed data*/
+
+#define SID_NUMBER                              3
+#define SID_INPUT_PICTURE                       0
+#define SID_REFERENCE_PICTURE                   1
+#define SID_RECON_PICTURE                       2
+static  VASurfaceID surface_ids[SID_NUMBER];
+
+/***************************************************/
+
+static void alloc_encode_resource()
+{
+    VAStatus va_status;
+
+    seq_parameter = VA_INVALID_ID;		
+    pic_parameter = VA_INVALID_ID;
+    slice_parameter = VA_INVALID_ID;
+
+    //1. Create sequence parameter set
+    {
+        VAEncSequenceParameterBufferH264 seq_h264 = {0};
+
+        seq_h264.level_idc = 30;
+        seq_h264.picture_width_in_mbs = picture_width / 16;
+        seq_h264.picture_height_in_mbs = picture_height / 16;
+        seq_h264.bits_per_second = 384*1000;
+        seq_h264.initial_qp = qp_value;
+        seq_h264.min_qp = 3;
+
+        va_status = vaCreateBuffer(va_dpy, context_id,
+                                   VAEncSequenceParameterBufferType,
+                                   sizeof(seq_h264),1,&seq_h264,&seq_parameter);
+        CHECK_VASTATUS(va_status,"vaCreateBuffer");;
+    }
+
+    //2. Create surface
+    va_status = vaCreateSurfaces(va_dpy, picture_width, picture_height,
+                                 VA_RT_FORMAT_YUV420, SID_NUMBER, &surface_ids[0]);
+    CHECK_VASTATUS(va_status, "vaCreateSurfaces");
+
+    //3. Create coded buffer
+    {
+        va_status = vaCreateBuffer(va_dpy,context_id,VAEncCodedBufferType,
+                                   codedbuf_size, 1, NULL, &coded_buf);
+
+        CHECK_VASTATUS(va_status,"vaBeginPicture");
+    }
+
+    newImageBuffer = (unsigned char *)malloc(frame_size);
+}
+
+static void release_encode_resource()
+{
+    free(newImageBuffer);
+
+    //-3 Relese coded buffer
+    vaDestroyBuffer(va_dpy, coded_buf);
+
+    //-2 Release all the surfaces resource
+    vaDestroySurfaces(va_dpy, &surface_ids[0], SID_NUMBER);	
+
+    //-1 Destory the sequence level parameter
+    vaDestroyBuffer(va_dpy, seq_parameter);
+}
+
+static void begin_picture()
+{
+    VAStatus va_status;
+    va_status = vaBeginPicture(va_dpy, context_id, surface_ids[SID_INPUT_PICTURE]);
+    CHECK_VASTATUS(va_status,"vaBeginPicture");
+}
+
+static void upload_yuv_to_surface(FILE *yuv_fp, VASurfaceID surface_id)
+{
+    VAImage surface_image;
+    VAStatus va_status;
+    void *surface_p = NULL;
+    unsigned char *y_src, *u_src, *v_src;
+    unsigned char *y_dst, *u_dst, *v_dst;
+    int y_size = picture_width * picture_height;
+    int u_size = (picture_width >> 1) * (picture_height >> 1);
+    int row, col;
+    size_t n_items;
+
+    do {
+        n_items = fread(newImageBuffer, frame_size, 1, yuv_fp);
+    } while (n_items != 1);
+
+    va_status = vaDeriveImage(va_dpy, surface_id, &surface_image);
+    CHECK_VASTATUS(va_status,"vaDeriveImage");
+
+    vaMapBuffer(va_dpy, surface_image.buf, &surface_p);
+    assert(VA_STATUS_SUCCESS == va_status);
+        
+    y_src = newImageBuffer;
+    u_src = newImageBuffer + y_size; /* UV offset for NV12 */
+    v_src = newImageBuffer + y_size + u_size;
+
+    y_dst = surface_p + surface_image.offsets[0];
+    u_dst = surface_p + surface_image.offsets[1]; /* UV offset for NV12 */
+    v_dst = surface_p + surface_image.offsets[2];
+
+    /* Y plane */
+    for (row = 0; row < surface_image.height; row++) {
+        memcpy(y_dst, y_src, surface_image.width);
+        y_dst += surface_image.pitches[0];
+        y_src += picture_width;
+    }
+
+    if (surface_image.format.fourcc == VA_FOURCC_NV12) { /* UV plane */
+        for (row = 0; row < surface_image.height / 2; row++) {
+            for (col = 0; col < surface_image.width / 2; col++) {
+                u_dst[col * 2] = u_src[col];
+                u_dst[col * 2 + 1] = v_src[col];
+            }
+
+            u_dst += surface_image.pitches[1];
+            u_src += (picture_width / 2);
+            v_src += (picture_width / 2);
+        }
+    } else {
+        /* FIXME: fix this later */
+        assert(0);
+    }
+
+    vaUnmapBuffer(va_dpy, surface_image.buf);
+    vaDestroyImage(va_dpy, surface_image.image_id);
+}
+
+static void prepare_input(FILE * yuv_fp, int intra_slice)
+{
+    static VAEncPictureParameterBufferH264 pic_h264;
+    static VAEncSliceParameterBuffer slice_h264;
+    VAStatus va_status;
+    VABufferID tempID;	
+    VACodedBufferSegment *coded_buffer_segment = NULL; 
+    unsigned char *coded_mem;
+
+    // Sequence level
+    va_status = vaRenderPicture(va_dpy, context_id, &seq_parameter, 1);
+    CHECK_VASTATUS(va_status,"vaRenderPicture");;
+
+    // Copy Image to target surface according input YUV data.
+    upload_yuv_to_surface(yuv_fp, surface_ids[SID_INPUT_PICTURE]);
+
+    // Picture level
+    pic_h264.reference_picture = surface_ids[SID_REFERENCE_PICTURE];
+    pic_h264.reconstructed_picture = surface_ids[SID_RECON_PICTURE];
+    pic_h264.coded_buf = coded_buf;
+    pic_h264.picture_width = picture_width;
+    pic_h264.picture_height = picture_height;
+    pic_h264.last_picture = 0;
+    if (pic_parameter != VA_INVALID_ID) {	
+        vaDestroyBuffer(va_dpy, pic_parameter);	
+    }
+    va_status = vaCreateBuffer(va_dpy, context_id,VAEncPictureParameterBufferType,
+                               sizeof(pic_h264),1,&pic_h264,&pic_parameter);
+    CHECK_VASTATUS(va_status,"vaCreateBuffer");
+    va_status = vaRenderPicture(va_dpy,context_id, &pic_parameter, 1);
+    CHECK_VASTATUS(va_status,"vaRenderPicture");
+	
+    // clean old memory
+    va_status = vaMapBuffer(va_dpy,coded_buf,(void **)(&coded_buffer_segment));
+    CHECK_VASTATUS(va_status,"vaMapBuffer");
+    coded_mem = coded_buffer_segment->buf;
+    memset(coded_mem, 0, coded_buffer_segment->size);
+    vaUnmapBuffer(va_dpy, coded_buf);
+
+    // Slice level	
+    slice_h264.start_row_number = 0;
+    slice_h264.slice_height = picture_height/16; /* Measured by MB */
+    slice_h264.slice_flags.bits.is_intra = intra_slice;
+    slice_h264.slice_flags.bits.disable_deblocking_filter_idc = 0;
+    if ( slice_parameter != VA_INVALID_ID){
+        vaDestroyBuffer(va_dpy, slice_parameter);
+    }
+    va_status = vaCreateBuffer(va_dpy,context_id,VAEncSliceParameterBufferType,
+                               sizeof(slice_h264),1,&slice_h264,&slice_parameter);
+    CHECK_VASTATUS(va_status,"vaCreateBuffer");;
+    va_status = vaRenderPicture(va_dpy,context_id, &slice_parameter, 1);
+    CHECK_VASTATUS(va_status,"vaRenderPicture");
+
+    // Prepare for next picture
+    tempID = surface_ids[SID_RECON_PICTURE];  
+    surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE]; 
+    surface_ids[SID_REFERENCE_PICTURE] = tempID;
+}
+
+static void end_picture()
+{	
+    VAStatus va_status;
+
+    va_status = vaEndPicture(va_dpy,context_id);
+    CHECK_VASTATUS(va_status,"vaRenderPicture");
+}
+
+#define BITSTREAM_ALLOCATE_STEPPING     4096
+
+struct __bitstream {
+    unsigned int *buffer;
+    int bit_offset;
+    int max_size_in_dword;
+};
+
+typedef struct __bitstream bitstream;
+
+static int 
+get_coded_bitsteam_length(unsigned char *buffer, int buffer_length)
+{
+    int i;
+
+    for (i = buffer_length - 1; i >= 0; i--) {
+        if (buffer[i])
+            break;
+    }
+
+    return i + 1;
+}
+
+static unsigned int 
+swap32(unsigned int val)
+{
+    unsigned char *pval = (unsigned char *)&val;
+
+    return ((pval[0] << 24)     |
+            (pval[1] << 16)     |
+            (pval[2] << 8)      |
+            (pval[3] << 0));
+}
+
+static void
+bitstream_start(bitstream *bs)
+{
+    bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
+    bs->buffer = calloc(bs->max_size_in_dword * sizeof(int), 1);
+    bs->bit_offset = 0;
+}
+
+static void
+bitstream_end(bitstream *bs, FILE *avc_fp)
+{
+    int pos = (bs->bit_offset >> 5);
+    int bit_offset = (bs->bit_offset & 0x1f);
+    int bit_left = 32 - bit_offset;
+    int length = (bs->bit_offset + 7) >> 3;
+    size_t w_items;
+
+    if (bit_offset) {
+        bs->buffer[pos] = swap32((bs->buffer[pos] << bit_left));
+    }
+
+    do {
+        w_items = fwrite(bs->buffer, length, 1, avc_fp);
+    } while (w_items != 1);
+
+    free(bs->buffer);
+}
+ 
+static void
+bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
+{
+    int pos = (bs->bit_offset >> 5);
+    int bit_offset = (bs->bit_offset & 0x1f);
+    int bit_left = 32 - bit_offset;
+
+    if (!size_in_bits)
+        return;
+
+    bs->bit_offset += size_in_bits;
+
+    if (bit_left > size_in_bits) {
+        bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
+    } else {
+        size_in_bits -= bit_left;
+        bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
+        bs->buffer[pos] = swap32(bs->buffer[pos]);
+
+        if (pos + 1 == bs->max_size_in_dword) {
+            bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
+            bs->buffer = realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
+        }
+
+        bs->buffer[pos + 1] = val;
+    }
+}
+
+static void
+bitstream_put_ue(bitstream *bs, unsigned int val)
+{
+    int size_in_bits = 0;
+    int tmp_val = ++val;
+
+    while (tmp_val) {
+        tmp_val >>= 1;
+        size_in_bits++;
+    }
+
+    bitstream_put_ui(bs, 0, size_in_bits - 1); // leading zero
+    bitstream_put_ui(bs, val, size_in_bits);
+}
+
+static void
+bitstream_put_se(bitstream *bs, int val)
+{
+    unsigned int new_val;
+
+    if (val <= 0)
+        new_val = -2 * val;
+    else
+        new_val = 2 * val - 1;
+
+    bitstream_put_ue(bs, new_val);
+}
+
+static void
+bitstream_byte_aligning(bitstream *bs, int bit)
+{
+    int bit_offset = (bs->bit_offset & 0x7);
+    int bit_left = 8 - bit_offset;
+    int new_val;
+
+    if (!bit_offset)
+        return;
+
+    assert(bit == 0 || bit == 1);
+
+    if (bit)
+        new_val = (1 << bit_left) - 1;
+    else
+        new_val = 0;
+
+    bitstream_put_ui(bs, new_val, bit_left);
+}
+
+static void 
+rbsp_trailing_bits(bitstream *bs)
+{
+    bitstream_put_ui(bs, 1, 1);
+    bitstream_byte_aligning(bs, 0);
+}
+
+static void nal_start_code_prefix(bitstream *bs)
+{
+    bitstream_put_ui(bs, 0x00000001, 32);
+}
+
+static void nal_header(bitstream *bs, int nal_ref_idc, int nal_unit_type)
+{
+    bitstream_put_ui(bs, 0, 1);                /* forbidden_zero_bit: 0 */
+    bitstream_put_ui(bs, nal_ref_idc, 2);
+    bitstream_put_ui(bs, nal_unit_type, 5);
+}
+
+static void sps_rbsp(bitstream *bs)
+{
+    int mb_width, mb_height;
+    int frame_cropping_flag = 0;
+    int frame_crop_bottom_offset = 0;
+    int profile_idc = PROFILE_IDC_MAIN;
+
+    mb_width = (picture_width + 15) / 16;
+    mb_height = (picture_height + 15) / 16;
+
+    if (mb_height * 16 - picture_height) {
+        frame_cropping_flag = 1;
+        frame_crop_bottom_offset = 
+            (mb_height * 16 - picture_height) / (2 * (!frame_mbs_only_flag + 1));
+    }
+
+    bitstream_put_ui(bs, profile_idc, 8);               /* profile_idc */
+    bitstream_put_ui(bs, 0, 1);                         /* constraint_set0_flag */
+    bitstream_put_ui(bs, 1, 1);                         /* constraint_set1_flag */
+    bitstream_put_ui(bs, 0, 1);                         /* constraint_set2_flag */
+    bitstream_put_ui(bs, 0, 1);                         /* constraint_set3_flag */
+    bitstream_put_ui(bs, 0, 4);                         /* reserved_zero_4bits */
+    bitstream_put_ui(bs, 41, 8);                        /* level_idc */
+    bitstream_put_ue(bs, 0);                            /* seq_parameter_set_id */
+
+    if (profile_idc >= 100) {
+        /* FIXME: fix for high profile */
+        assert(0);
+    }
+
+    bitstream_put_ue(bs, log2_max_frame_num_minus4);    /* log2_max_frame_num_minus4 */
+    bitstream_put_ue(bs, pic_order_cnt_type);           /* pic_order_cnt_type */
+
+    if (pic_order_cnt_type == 0)
+        bitstream_put_ue(bs, log2_max_pic_order_cnt_lsb_minus4);        /* log2_max_pic_order_cnt_lsb_minus4 */
+    else {
+        assert(0);
+    }
+
+    bitstream_put_ue(bs, 1);                            /* num_ref_frames */
+    bitstream_put_ui(bs, 0, 1);                         /* gaps_in_frame_num_value_allowed_flag */
+
+    bitstream_put_ue(bs, mb_width - 1);                 /* pic_width_in_mbs_minus1 */
+    bitstream_put_ue(bs, mb_height - 1);                /* pic_height_in_map_units_minus1 */
+    bitstream_put_ui(bs, frame_mbs_only_flag, 1);       /* frame_mbs_only_flag */
+
+    if (!frame_mbs_only_flag) {
+        assert(0);
+    }
+
+    bitstream_put_ui(bs, 0, 1);                         /* direct_8x8_inference_flag */
+    bitstream_put_ui(bs, frame_cropping_flag, 1);       /* frame_cropping_flag */
+
+    if (frame_cropping_flag) {
+        bitstream_put_ue(bs, 0);                        /* frame_crop_left_offset */
+        bitstream_put_ue(bs, 0);                        /* frame_crop_right_offset */
+        bitstream_put_ue(bs, 0);                        /* frame_crop_top_offset */
+        bitstream_put_ue(bs, frame_crop_bottom_offset); /* frame_crop_bottom_offset */
+    }
+
+    bitstream_put_ui(bs, 0, 1);                         /* vui_parameters_present_flag */
+    rbsp_trailing_bits(bs);                             /* rbsp_trailing_bits */
+}
+
+static void build_nal_sps(FILE *avc_fp)
+{
+    bitstream bs;
+
+    bitstream_start(&bs);
+    nal_start_code_prefix(&bs);
+    nal_header(&bs, NAL_REF_IDC_HIGH, NAL_SPS);
+    sps_rbsp(&bs);
+    bitstream_end(&bs, avc_fp);
+}
+
+static void pps_rbsp(bitstream *bs)
+{
+    bitstream_put_ue(bs, 0);		                /* pic_parameter_set_id */
+    bitstream_put_ue(bs, 0);                            /* seq_parameter_set_id */
+
+    bitstream_put_ui(bs, entropy_coding_mode_flag, 1);  /* entropy_coding_mode_flag */
+
+    bitstream_put_ui(bs, 0, 1);                         /* pic_order_present_flag: 0 */
+
+    bitstream_put_ue(bs, 0);                            /* num_slice_groups_minus1 */
+
+    bitstream_put_ue(bs, 0);                            /* num_ref_idx_l0_active_minus1 */
+    bitstream_put_ue(bs, 0);                            /* num_ref_idx_l1_active_minus1 1 */
+
+    bitstream_put_ui(bs, 0, 1);                         /* weighted_pred_flag: 0 */
+    bitstream_put_ui(bs, 0, 2);	                        /* weighted_bipred_idc: 0 */
+
+    bitstream_put_se(bs, 0);                            /* pic_init_qp_minus26 */
+    bitstream_put_se(bs, 0);                            /* pic_init_qs_minus26 */
+    bitstream_put_se(bs, 0);                            /* chroma_qp_index_offset */
+
+    bitstream_put_ui(bs, 1, 1);                         /* deblocking_filter_control_present_flag */
+    bitstream_put_ui(bs, 0, 1);                         /* constrained_intra_pred_flag */
+    bitstream_put_ui(bs, 0, 1);                         /* redundant_pic_cnt_present_flag */
+
+    rbsp_trailing_bits(bs);
+}
+
+static void build_nal_pps(FILE *avc_fp)
+{
+    bitstream bs;
+
+    bitstream_start(&bs);
+    nal_start_code_prefix(&bs);
+    nal_header(&bs, NAL_REF_IDC_HIGH, NAL_PPS);
+    pps_rbsp(&bs);
+    bitstream_end(&bs, avc_fp);
+}
+
+static void 
+build_header(FILE *avc_fp)
+{
+    build_nal_sps(avc_fp);
+    build_nal_pps(avc_fp);
+}
+
+
+static void 
+slice_header(bitstream *bs, int frame_num, int slice_type, int is_idr)
+{       
+    int is_cabac = (entropy_coding_mode_flag == ENTROPY_MODE_CABAC);
+
+    bitstream_put_ue(bs, 0);                   /* first_mb_in_slice: 0 */
+    bitstream_put_ue(bs, slice_type);          /* slice_type */
+    bitstream_put_ue(bs, 0);                   /* pic_parameter_set_id: 0 */
+    bitstream_put_ui(bs, frame_num & 0x0F, log2_max_frame_num_minus4 + 4);    /* frame_num */
+
+    /* frame_mbs_only_flag == 1 */
+    if (!frame_mbs_only_flag) {
+        /* FIXME: */
+        assert(0);
+    }
+
+    if (is_idr)
+        bitstream_put_ue(bs, 0);		/* idr_pic_id: 0 */
+
+    if (pic_order_cnt_type == 0) {
+	bitstream_put_ui(bs, (frame_num * 2) & 0x0F, log2_max_pic_order_cnt_lsb_minus4 + 4);
+        /* only support frame */
+    } else {
+        /* FIXME: */
+        assert(0);
+    }
+
+    /* redundant_pic_cnt_present_flag == 0 */
+    
+    /* slice type */
+    if (slice_type == SLICE_TYPE_P) {
+        bitstream_put_ui(bs, 0, 1);            /* num_ref_idx_active_override_flag: 0 */
+        /* ref_pic_list_reordering */
+        bitstream_put_ui(bs, 0, 1);            /* ref_pic_list_reordering_flag_l0: 0 */
+    } else if (slice_type == SLICE_TYPE_B) {
+        /* FIXME */
+        assert(0);
+    }   
+
+    /* weighted_pred_flag == 0 */
+
+    /* dec_ref_pic_marking */
+    if (is_idr) {
+        bitstream_put_ui(bs, 0, 1);            /* no_output_of_prior_pics_flag: 0 */
+        bitstream_put_ui(bs, 0, 1);            /* long_term_reference_flag: 0 */
+    } else {
+        bitstream_put_ui(bs, 0, 1);            /* adaptive_ref_pic_marking_mode_flag: 0 */
+    }
+
+    if (is_cabac && (slice_type != SLICE_TYPE_I))
+        bitstream_put_ue(bs, 0);               /* cabac_init_idc: 0 */
+
+    bitstream_put_se(bs, 0);                   /* slice_qp_delta: 0 */
+
+    if (deblocking_filter_control_present_flag == 1) {
+        bitstream_put_ue(bs, 0);               /* disable_deblocking_filter_idc: 0 */
+        bitstream_put_se(bs, 2);               /* slice_alpha_c0_offset_div2: 2 */
+        bitstream_put_se(bs, 2);               /* slice_beta_offset_div2: 2 */
+    }
+}
+
+static void 
+slice_data(bitstream *bs)
+{
+    VACodedBufferSegment *coded_buffer_segment;
+    unsigned char *coded_mem;
+    int i, slice_data_length;
+    VAStatus va_status;
+    VASurfaceStatus surface_status;
+    int is_cabac = (entropy_coding_mode_flag == ENTROPY_MODE_CABAC);
+
+    va_status = vaSyncSurface(va_dpy, surface_ids[SID_INPUT_PICTURE]);
+    CHECK_VASTATUS(va_status,"vaSyncSurface");
+
+    surface_status = 0;
+    va_status = vaQuerySurfaceStatus(va_dpy, surface_ids[SID_INPUT_PICTURE], &surface_status);
+    CHECK_VASTATUS(va_status,"vaQuerySurfaceStatus");
+
+    va_status = vaMapBuffer(va_dpy, coded_buf, (void **)(&coded_buffer_segment));
+    CHECK_VASTATUS(va_status,"vaMapBuffer");
+    coded_mem = coded_buffer_segment->buf;
+
+    if (is_cabac) {
+        bitstream_byte_aligning(bs, 1);
+        slice_data_length = get_coded_bitsteam_length(coded_mem, codedbuf_size);
+
+	for (i = 0; i < slice_data_length; i++) {
+            bitstream_put_ui(bs, *coded_mem, 8);
+            coded_mem++;
+	}
+    } else {
+        /* FIXME */
+        assert(0);
+    }
+
+    vaUnmapBuffer(va_dpy, coded_buf);
+}
+
+static void 
+build_nal_slice(FILE *avc_fp, int frame_num, int slice_type, int is_idr)
+{
+    bitstream bs;
+
+    bitstream_start(&bs);
+    nal_start_code_prefix(&bs);
+    nal_header(&bs, NAL_REF_IDC_HIGH, is_idr ? NAL_IDR : NAL_NON_IDR);
+    slice_header(&bs, frame_num, slice_type, is_idr);
+    slice_data(&bs);
+    bitstream_end(&bs, avc_fp);
+}
+
+static void 
+store_coded_buffer(FILE *avc_fp, int frame_num, int is_intra, int is_idr)
+{
+    build_nal_slice(avc_fp, frame_num, is_intra ? SLICE_TYPE_I : SLICE_TYPE_P, is_idr);
+}
+
+int main(int argc, char *argv[])
+{
+    int f;
+    FILE *yuv_fp;
+    FILE *avc_fp;
+    int frame_number;
+    long file_size;
+    clock_t start_clock, end_clock;
+    float encoding_time;
+
+    if(argc != 5 && argc != 6) {
+        printf("Usage: %s <width> <height> <input_yuvfile> <output_avcfile> [qp]\n", argv[0]);
+        return -1;
+    }
+
+    picture_width = atoi(argv[1]);
+    picture_height = atoi(argv[2]);
+
+    if (argc == 6)
+        qp_value = atoi(argv[5]);
+    else
+        qp_value = 26;
+
+    yuv_fp = fopen(argv[3],"rb");
+    if ( yuv_fp == NULL){
+        printf("Can't open input YUV file\n");
+        return -1;
+    }
+    fseek(yuv_fp,0l, SEEK_END);
+    file_size = ftell(yuv_fp);
+    frame_size = picture_width * picture_height +  ((picture_width * picture_height) >> 1) ;
+    codedbuf_size = picture_width * picture_height * 1.5;
+
+    if ( (file_size < frame_size) || (file_size % frame_size) ) {
+        printf("The YUV file's size is not correct\n");
+        return -1;
+    }
+    frame_number = file_size / frame_size;
+    fseek(yuv_fp, 0l, SEEK_SET);
+
+    avc_fp = fopen(argv[4], "wb");	
+    if ( avc_fp == NULL) {
+        printf("Can't open output avc file\n");
+        return -1;
+    }	
+    start_clock = clock();
+    build_header(avc_fp);
+
+    create_encode_pipe();
+    alloc_encode_resource();
+
+    for ( f = 0; f < frame_number; f++ ) {		//picture level loop
+        int is_intra = (f % 30 == 0);
+        int is_idr = (f == 0);
+
+        begin_picture();
+        prepare_input(yuv_fp, is_intra);
+        end_picture();
+        store_coded_buffer(avc_fp, f, is_intra, is_idr);
+
+        printf("\r %d/%d ...", f+1, frame_number);
+        fflush(stdout);
+    }
+
+    end_clock = clock();
+    printf("\ndone!\n");
+    encoding_time = (float)(end_clock-start_clock)/CLOCKS_PER_SEC;
+    printf("encode %d frames in %f secondes, FPS is %.1f\n",frame_number, encoding_time, frame_number/encoding_time);
+
+    release_encode_resource();
+    destory_encode_pipe();
+
+    return 0;
+}