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Merge remote-tracking branch 'qatar/release/9' into release/1.1

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* qatar/release/9:
  arm: Fall back to runtime cpu feature detection via /proc/cpuinfo
  doc/platform: Fix 10l typo
  xxan: properly handle odd heights.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-02-14 13:50:03 +01:00
parent 2ac6b573a4 5310da7e83
commit 7d3e217623
3 changed files with 70 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
libavcodec/xxan.c
View File

@@ -45,6 +45,11 @@ static av_cold int xan_decode_init(AVCodecContext *avctx)
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
if (avctx->height < 8) {
av_log(avctx, AV_LOG_ERROR, "Invalid frame height: %d.\n", avctx->height);
return AVERROR(EINVAL);
}
s->buffer_size = avctx->width * avctx->height;
s->y_buffer = av_malloc(s->buffer_size);
if (!s->y_buffer)
@@ -212,6 +217,10 @@ static int xan_decode_chroma(AVCodecContext *avctx, unsigned chroma_off)
U += s->pic.linesize[1];
V += s->pic.linesize[2];
}
if (avctx->height & 1) {
memcpy(U, U - s->pic.linesize[1], avctx->width >> 1);
memcpy(V, V - s->pic.linesize[2], avctx->width >> 1);
}
} else {
uint8_t *U2 = U + s->pic.linesize[1];
uint8_t *V2 = V + s->pic.linesize[2];
@@ -236,6 +245,12 @@ static int xan_decode_chroma(AVCodecContext *avctx, unsigned chroma_off)
U2 += s->pic.linesize[1] * 2;
V2 += s->pic.linesize[2] * 2;
}
if (avctx->height & 3) {
int lines = ((avctx->height + 1) >> 1) - (avctx->height >> 2) * 2;
memcpy(U, U - lines * s->pic.linesize[1], lines * s->pic.linesize[1]);
memcpy(V, V - lines * s->pic.linesize[2], lines * s->pic.linesize[2]);
}
}
return 0;

33
libavutil/arm/cpu.c
View File

@@ -34,6 +34,8 @@
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "libavutil/avstring.h"
#define AT_HWCAP 16
@@ -66,12 +68,43 @@ static int get_hwcap(uint32_t *hwcap)
return err;
}
static int get_cpuinfo(uint32_t *hwcap)
{
FILE *f = fopen("/proc/cpuinfo", "r");
char buf[200];
if (!f)
return -1;
*hwcap = 0;
while (fgets(buf, sizeof(buf), f)) {
if (av_strstart(buf, "Features", NULL)) {
if (strstr(buf, " edsp "))
*hwcap |= HWCAP_EDSP;
if (strstr(buf, " tls "))
*hwcap |= HWCAP_TLS;
if (strstr(buf, " thumbee "))
*hwcap |= HWCAP_THUMBEE;
if (strstr(buf, " vfp "))
*hwcap |= HWCAP_VFP;
if (strstr(buf, " vfpv3 "))
*hwcap |= HWCAP_VFPv3;
if (strstr(buf, " neon "))
*hwcap |= HWCAP_NEON;
break;
}
}
fclose(f);
return 0;
}
int ff_get_cpu_flags_arm(void)
{
int flags = CORE_CPU_FLAGS;
uint32_t hwcap;
if (get_hwcap(&hwcap) < 0)
if (get_cpuinfo(&hwcap) < 0)
return flags;
#define check_cap(cap, flag) do { \

42
tests/ref/fate/xxan-wc4
View File

@@ -1,22 +1,22 @@
#tb 0: 1/15
0, 0, 0, 1, 79360, 0x3b0a7d1b
0, 1, 1, 1, 79360, 0x740842c3
0, 2, 2, 1, 79360, 0x85160167
0, 3, 3, 1, 79360, 0xaf510e92
0, 4, 4, 1, 79360, 0x8e290bec
0, 5, 5, 1, 79360, 0x51e981b0
0, 6, 6, 1, 79360, 0x16e52c60
0, 7, 7, 1, 79360, 0x66e1e60a
0, 8, 8, 1, 79360, 0x40fa58f6
0, 9, 9, 1, 79360, 0x00388edd
0, 10, 10, 1, 79360, 0xc74f95bf
0, 11, 11, 1, 79360, 0xf446a3fd
0, 12, 12, 1, 79360, 0x27b5eb60
0, 13, 13, 1, 79360, 0xea9266a2
0, 14, 14, 1, 79360, 0x7b6a7907
0, 15, 15, 1, 79360, 0x2be7d946
0, 16, 16, 1, 79360, 0x61881ee4
0, 17, 17, 1, 79360, 0x9214bd4f
0, 18, 18, 1, 79360, 0xeb294afe
0, 19, 19, 1, 79360, 0xc861ad55
0, 20, 20, 1, 79360, 0x3d3b6220
0, 0, 0, 1, 79360, 0x8537821b
0, 1, 1, 1, 79360, 0x110c4343
0, 2, 2, 1, 79360, 0xa85105bb
0, 3, 3, 1, 79360, 0x87431836
0, 4, 4, 1, 79360, 0x5c701720
0, 5, 5, 1, 79360, 0x20308ce4
0, 6, 6, 1, 79360, 0xe51d3794
0, 7, 7, 1, 79360, 0x80e6f1e0
0, 8, 8, 1, 79360, 0x5aff64cc
0, 9, 9, 1, 79360, 0x1a3d9ab3
0, 10, 10, 1, 79360, 0xe154a195
0, 11, 11, 1, 79360, 0x608dafdc
0, 12, 12, 1, 79360, 0x93edf73f
0, 13, 13, 1, 79360, 0x56d97281
0, 14, 14, 1, 79360, 0xe7a284e6
0, 15, 15, 1, 79360, 0xd4e5e513
0, 16, 16, 1, 79360, 0x0a952ab1
0, 17, 17, 1, 79360, 0x3b21c91c
0, 18, 18, 1, 79360, 0x943656cb
0, 19, 19, 1, 79360, 0xffbdb94b
0, 20, 20, 1, 79360, 0x74976e16