From 917e06c81b34ba1bac88bd23f22b1a460fae0b4a Mon Sep 17 00:00:00 2001
From: Fabrice Bellard <fabrice@bellard.org>
Date: Thu, 25 Jul 2002 16:25:36 +0000
Subject: [PATCH] added proposed API for parse_only mode to extract compressed
frames from compressed streams
Originally committed as revision 810 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/avcodec.h | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 4715282ed6f..76de60a19fd 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -113,6 +113,9 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
/* decoder can use draw_horiz_band callback */
#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001
#define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
+/* if 'parse_only' field is true, then avcodec_parse_frame() can be
+ used */
+#define CODEC_CAP_PARSE_ONLY 0x0004
#define FRAME_RATE_BASE 10000
@@ -258,8 +261,8 @@ typedef struct AVCodecContext {
#define QP_TYPE int //FIXME note xxx this might be changed to int8_t
QP_TYPE *quant_store; /* field for communicating with external postprocessing */
- unsigned qstride;
+ unsigned qstride;
uint8_t *dr_buffer[3];
int dr_stride;
void *dr_opaque_frame;
@@ -270,6 +273,10 @@ typedef struct AVCodecContext {
int dr_ip_buffer_count;
int block_align; /* currently only for adpcm codec in wav/avi */
+ int parse_only; /* decoding only: if true, only parsing is done
+ (function avcodec_parse_frame()). The frame
+ data is returned. Only MPEG codecs support this now. */
+
//FIXME this should be reordered after kabis API is finished ...
/*
Note: Below are located reserved fields for further usage
@@ -292,7 +299,7 @@ typedef struct AVCodecContext {
ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
unsigned int
- ui_res0,ui_res1;
+ ui_res0;
unsigned short int
us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
@@ -459,6 +466,9 @@ int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
int *got_picture_ptr,
UINT8 *buf, int buf_size);
+int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
+ int *data_size_ptr,
+ UINT8 *buf, int buf_size);
int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
const short *samples);
int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
--
GitLab