Attachment 1962 Details for Bug 11760 – [PATCH 02] dtsdec: save frame flags in DTSContext

[patch] [PATCH 02] dtsdec: save frame flags in DTSContext

0002-dtsdec-save-frame-flags-in-DTSContext.patch (text/plain), 1.74 KB, created by Sergey Vlasov on 2007-05-15 14:55:13 MSD

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Creator: Sergey Vlasov

Created: 2007-05-15 14:55:13 MSD

Size: 1.74 KB

patch

obsolete

>From 515625622470bb406ed87b8b36739847b4655c39 Mon Sep 17 00:00:00 2001
>From: Sergey Vlasov <vsu@altlinux.ru>
>Date: Tue, 15 May 2007 14:21:33 +0400
>Subject: dtsdec: save frame flags in DTSContext
>
>Frame flags must be saved between calls to dts_decode_frame() (if the
>input buffer did not hold a complete frame, flags for that frame will
>be used by the next dts_decode_frame() call when the rest of frame
>data is available).  Fixes "dts_frame() failed" errors in mplayer due
>to uninitialized garbage in flags.
>
>Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
>---
> libavcodec/dtsdec.c |    5 +++--
> 1 files changed, 3 insertions(+), 2 deletions(-)
>
>diff --git a/libavcodec/dtsdec.c b/libavcodec/dtsdec.c
>index cf77a57..17ba86f 100644
>--- a/libavcodec/dtsdec.c
>+++ b/libavcodec/dtsdec.c
>@@ -36,6 +36,7 @@ typedef struct DTSContext {
>     uint8_t buf[BUFFER_SIZE];
>     uint8_t *bufptr;
>     uint8_t *bufpos;
>+    int flags;
> } DTSContext;
> 
> static inline int16_t
>@@ -201,7 +202,7 @@ dts_decode_frame(AVCodecContext * avctx, void *data, int *data_size,
>         if(s->bufpos != s->buf + HEADER_SIZE)
>             break;
> 
>-        length = dts_syncinfo(s->state, s->buf, &flags, &sample_rate,
>+        length = dts_syncinfo(s->state, s->buf, &s->flags, &sample_rate,
>                               &bit_rate, &frame_length);
>         if(!length) {
>             av_log(NULL, AV_LOG_INFO, "skip\n");
>@@ -215,7 +216,7 @@ dts_decode_frame(AVCodecContext * avctx, void *data, int *data_size,
>     level = CONVERT_LEVEL;
>     bias = CONVERT_BIAS;
> 
>-    flags |= DTS_ADJUST_LEVEL;
>+    flags = s->flags | DTS_ADJUST_LEVEL;
>     if(dts_frame(s->state, s->buf, &flags, &level, bias)) {
>         av_log(avctx, AV_LOG_ERROR, "dts_frame() failed\n");
>         goto end;
>-- 
>1.5.1.1.197.g66b3
>

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