From 691dec62011fe9993809fbc793126b40cac0c584 Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <cehoyos@ag.or.at>
Date: Thu, 12 Dec 2013 13:47:44 +0100
Subject: Allow stream-copying grayscale mov files.

This reverts 0de2157f / r12272.
Fixes ticket #3215.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavcodec/8bps.c   | 2 +-
 libavcodec/msrle.c  | 2 +-
 libavcodec/rawdec.c | 8 ++++----
 3 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'libavcodec')

diff --git a/libavcodec/8bps.c b/libavcodec/8bps.c
index d01ef924c7..1709368c65 100644
--- a/libavcodec/8bps.c
+++ b/libavcodec/8bps.c
@@ -119,7 +119,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
         }
     }
 
-    if (avctx->bits_per_coded_sample <= 8) {
+    if ((avctx->bits_per_coded_sample & 0x1f) <= 8) {
         const uint8_t *pal = av_packet_get_side_data(avpkt,
                                                      AV_PKT_DATA_PALETTE,
                                                      NULL);
diff --git a/libavcodec/msrle.c b/libavcodec/msrle.c
index 2836fec2fd..7ae4b08ba6 100644
--- a/libavcodec/msrle.c
+++ b/libavcodec/msrle.c
@@ -54,7 +54,7 @@ static av_cold int msrle_decode_init(AVCodecContext *avctx)
 
     s->avctx = avctx;
 
-    switch (avctx->bits_per_coded_sample) {
+    switch (avctx->bits_per_coded_sample & 0x1f) {
     case 1:
         avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
         break;
diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c
index 3f4a8fc86d..e1682e399e 100644
--- a/libavcodec/rawdec.c
+++ b/libavcodec/rawdec.c
@@ -108,7 +108,7 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx)
     if (   avctx->codec_tag == MKTAG('r','a','w',' ')
         || avctx->codec_tag == MKTAG('N','O','1','6'))
         avctx->pix_fmt = avpriv_find_pix_fmt(pix_fmt_bps_mov,
-                                      avctx->bits_per_coded_sample);
+                                      avctx->bits_per_coded_sample & 0x1f);
     else if (avctx->codec_tag == MKTAG('W', 'R', 'A', 'W'))
         avctx->pix_fmt = avpriv_find_pix_fmt(pix_fmt_bps_avi,
                                       avctx->bits_per_coded_sample);
@@ -134,7 +134,7 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx)
             memset(context->palette->data, 0, AVPALETTE_SIZE);
     }
 
-    if ((avctx->bits_per_coded_sample == 4 || avctx->bits_per_coded_sample == 2) &&
+    if (((avctx->bits_per_coded_sample & 0x1f) == 4 || (avctx->bits_per_coded_sample & 0x1f) == 2) &&
         avctx->pix_fmt == AV_PIX_FMT_PAL8 &&
        (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))) {
         context->is_2_4_bpp = 1;
@@ -207,14 +207,14 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
         int i;
         uint8_t *dst = frame->buf[0]->data;
         buf_size = context->frame_size - AVPALETTE_SIZE;
-        if (avctx->bits_per_coded_sample == 4) {
+        if ((avctx->bits_per_coded_sample & 0x1f) == 4) {
             for (i = 0; 2 * i + 1 < buf_size && i<avpkt->size; i++) {
                 dst[2 * i + 0] = buf[i] >> 4;
                 dst[2 * i + 1] = buf[i] & 15;
             }
             linesize_align = 8;
         } else {
-            av_assert0(avctx->bits_per_coded_sample == 2);
+            av_assert0((avctx->bits_per_coded_sample & 0x1f) == 2);
             for (i = 0; 4 * i + 3 < buf_size && i<avpkt->size; i++) {
                 dst[4 * i + 0] = buf[i] >> 6;
                 dst[4 * i + 1] = buf[i] >> 4 & 3;
-- 
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