H264/MPEG frame-level multi-threading.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

1 files changed, 15 insertions, 3 deletions

diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 6d5ab19283..6ce7faa235 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -76,6 +76,8 @@ enum OutputFormat {
 #define EXT_START_CODE          0x000001b5
 #define USER_START_CODE         0x000001b2
 
+struct MpegEncContext;
+
 /**
  * Picture.
  */
@@ -123,6 +125,7 @@ typedef struct Picture{
     int ref_poc[2][2][16];      ///< h264 POCs of the frames used as reference (FIXME need per slice)
     int ref_count[2][2];        ///< number of entries in ref_poc              (FIXME need per slice)
     int mbaff;                  ///< h264 1 -> MBAFF frame 0-> not MBAFF
+    int field_picture;          ///< whether or not the picture was encoded in seperate fields
 
     int mb_var_sum;             ///< sum of MB variance for current frame
     int mc_mb_var_sum;          ///< motion compensated MB variance for current frame
@@ -131,10 +134,9 @@ typedef struct Picture{
     uint8_t *mb_mean;           ///< Table for MB luminance
     int32_t *mb_cmp_score;      ///< Table for MB cmp scores, for mb decision FIXME remove
     int b_frame_score;          /* */
+    struct MpegEncContext *owner2; ///< pointer to the MpegEncContext that allocated this picture
 } Picture;
 
-struct MpegEncContext;
-
 /**
  * Motion estimation context.
  */
@@ -291,6 +293,8 @@ typedef struct MpegEncContext {
     Picture *last_picture_ptr;     ///< pointer to the previous picture.
     Picture *next_picture_ptr;     ///< pointer to the next picture (for bidir pred)
     Picture *current_picture_ptr;  ///< pointer to the current picture
+    int picture_count;             ///< number of allocated pictures (MAX_PICTURE_COUNT * avctx->thread_count)
+    int picture_range_start, picture_range_end; ///< the part of picture that this context can allocate in
     uint8_t *visualization_buffer[3]; //< temporary buffer vor MV visualization
     int last_dc[3];                ///< last DC values for MPEG1
     int16_t *dc_val_base;
@@ -470,7 +474,7 @@ typedef struct MpegEncContext {
     int last_bits; ///< temp var used for calculating the above vars
 
     /* error concealment / resync */
-    int error_count;
+    int error_count, error_occurred;
     uint8_t *error_status_table;       ///< table of the error status of each MB
 #define VP_START            1          ///< current MB is the first after a resync marker
 #define AC_ERROR            2
@@ -677,6 +681,10 @@ typedef struct MpegEncContext {
     void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block);
 } MpegEncContext;
 
+#define REBASE_PICTURE(pic, new_ctx, old_ctx) (pic ? \
+    (pic >= old_ctx->picture && pic < old_ctx->picture+old_ctx->picture_count ?\
+        &new_ctx->picture[pic - old_ctx->picture] : pic - (Picture*)old_ctx + (Picture*)new_ctx)\
+    : NULL)
 
 void MPV_decode_defaults(MpegEncContext *s);
 int MPV_common_init(MpegEncContext *s);
@@ -699,9 +707,13 @@ void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
 void ff_mpeg_flush(AVCodecContext *avctx);
 void ff_print_debug_info(MpegEncContext *s, AVFrame *pict);
 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
+void ff_release_unused_pictures(MpegEncContext *s, int remove_current);
 int ff_find_unused_picture(MpegEncContext *s, int shared);
 void ff_denoise_dct(MpegEncContext *s, DCTELEM *block);
 void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
+int MPV_lowest_referenced_row(MpegEncContext *s, int dir);
+void MPV_report_decode_progress(MpegEncContext *s);
+int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
 const uint8_t *ff_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state);
 void ff_set_qscale(MpegEncContext * s, int qscale);