Initial revision

Originally committed as revision 2 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 94 insertions, 0 deletions

diff --git a/libav/mpegvideo.h b/libav/mpegvideo.h
new file mode 100644
index 0000000000..e1fbe044a0
--- /dev/null
+++ b/libav/mpegvideo.h
@@ -0,0 +1,94 @@
+/* mpegencode.c */
+
+/* Start codes. */
+#define SEQ_END_CODE		0x000001b7
+#define SEQ_START_CODE		0x000001b3
+#define GOP_START_CODE		0x000001b8
+#define PICTURE_START_CODE	0x00000100
+#define SLICE_MIN_START_CODE	0x00000101
+#define SLICE_MAX_START_CODE	0x000001af
+#define EXT_START_CODE		0x000001b5
+#define USER_START_CODE		0x000001b2
+
+/* Macros for picture code type. */
+#define I_TYPE 1
+#define P_TYPE 2
+#define B_TYPE 3
+
+typedef int DCTELEM;
+
+enum OutputFormat {
+    FMT_MPEG1,
+    FMT_H263,
+    FMT_MJPEG,
+};
+
+#define MAX_NEG_CROP 384
+
+#define MPEG_BUF_SIZE (16 * 1024)
+
+typedef struct MpegEncContext {
+    /* the following parameters must be initialized before encoding */
+    int width, height; /* picture size. must be a multiple of 16 */
+    int gop_size;
+    int frame_rate; /* number of frames per second */
+    int intra_only; /* if true, only intra pictures are generated */
+    int bit_rate;        /* wanted bit rate */
+    enum OutputFormat out_format; /* output format */
+    int h263_rv10; /* use RV10 variation for H263 */
+
+    /* the following fields are managed internally by the encoder */
+
+    /* bit output */
+    PutBitContext pb;
+
+    /* sequence parameters */
+    int picture_number;
+    int fake_picture_number; /* picture number at the bitstream frame rate */
+    int gop_picture_number; /* index of the first picture of a GOP */
+    int mb_width, mb_height;
+    UINT8 *new_picture[3];     /* picture to be compressed */
+    UINT8 *last_picture[3];    /* previous picture */
+    UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */
+    int last_dc[3];
+    int qscale;
+    int pict_type;
+    int frame_rate_index;
+    /* macroblock layer */
+    int mb_incr;
+    int mb_intra;
+    /* matrix transmitted in the bitstream */
+    UINT8 init_intra_matrix[64];
+    /* precomputed matrix (combine qscale and DCT renorm) */
+    int intra_matrix[64];
+    int non_intra_matrix[64];
+    int block_last_index[6];  /* last non zero coefficient in block */
+
+    void *opaque; /* private data for the user */
+
+    /* bit rate control */
+    int I_frame_bits;    /* wanted number of bits per I frame */
+    int P_frame_bits;    /* same for P frame */
+    long long wanted_bits;
+    long long total_bits;
+    struct MJpegContext *mjpeg_ctx;
+} MpegEncContext;
+
+extern const UINT8 zigzag_direct[64];
+
+/* h263enc.c */
+
+void h263_encode_mb(MpegEncContext *s, 
+                    DCTELEM block[6][64],
+                    int motion_x, int motion_y);
+void h263_picture_header(MpegEncContext *s, int picture_number);
+void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
+
+/* mjpegenc.c */
+
+int mjpeg_init(MpegEncContext *s);
+void mjpeg_close(MpegEncContext *s);
+void mjpeg_encode_mb(MpegEncContext *s, 
+                     DCTELEM block[6][64]);
+void mjpeg_picture_header(MpegEncContext *s);
+void mjpeg_picture_trailer(MpegEncContext *s);