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-rw-r--r--multimedia/mythtv/files/patch-CVE-2017-09608a116
1 files changed, 0 insertions, 116 deletions
diff --git a/multimedia/mythtv/files/patch-CVE-2017-09608a b/multimedia/mythtv/files/patch-CVE-2017-09608a
deleted file mode 100644
index b1b3ead01b12..000000000000
--- a/multimedia/mythtv/files/patch-CVE-2017-09608a
+++ /dev/null
@@ -1,116 +0,0 @@
-From e1940d2458353943e2fab6bdb87d2278077e22a5 Mon Sep 17 00:00:00 2001
-From: Paul B Mahol <onemda@gmail.com>
-Date: Mon, 20 Mar 2017 22:47:48 +0100
-Subject: [PATCH] avcodec/dnxhd_parser: take into account compressed frame size
- and skip it
-
-Fixes #6214 and vsynth1-dnxhd-720p-hr-lb.
-
-Signed-off-by: Paul B Mahol <onemda@gmail.com>
----
- libavcodec/dnxhd_parser.c | 65 +++++++++++++++++++++++++++----
- tests/ref/vsynth/vsynth1-dnxhd-720p-hr-lb | 4 +-
- 2 files changed, 60 insertions(+), 9 deletions(-)
-
-diff --git a/libavcodec/dnxhd_parser.c b/libavcodec/dnxhd_parser.c
-index 033b8ee7e11..4f9bbceeeb5 100644
---- external/FFmpeg/libavcodec/dnxhd_parser.c
-+++ external/FFmpeg/libavcodec/dnxhd_parser.c
-@@ -31,8 +31,24 @@ typedef struct {
- ParseContext pc;
- int interlaced;
- int cur_field; /* first field is 0, second is 1 */
-+ int cur_byte;
-+ int remaining;
-+ int w, h;
- } DNXHDParserContext;
-
-+static int dnxhd_get_hr_frame_size(int cid, int w, int h)
-+{
-+ int result, i = ff_dnxhd_get_cid_table(cid);
-+
-+ if (i < 0)
-+ return i;
-+
-+ result = ((h + 15) / 16) * ((w + 15) / 16) * ff_dnxhd_cid_table[i].packet_scale.num / ff_dnxhd_cid_table[i].packet_scale.den;
-+ result = (result + 2048) / 4096 * 4096;
-+
-+ return FFMAX(result, 8192);
-+}
-+
- static int dnxhd_find_frame_end(DNXHDParserContext *dctx,
- const uint8_t *buf, int buf_size)
- {
-@@ -51,30 +67,65 @@ static int dnxhd_find_frame_end(DNXHDParserContext *dctx,
- pic_found = 1;
- interlaced = (state&2)>>1; /* byte following the 5-byte header prefix */
- cur_field = state&1;
-+ dctx->cur_byte = 0;
-+ dctx->remaining = 0;
- break;
- }
- }
- }
-
-- if (pic_found) {
-+ if (pic_found && !dctx->remaining) {
- if (!buf_size) /* EOF considered as end of frame */
- return 0;
- for (; i < buf_size; i++) {
-+ dctx->cur_byte++;
- state = (state << 8) | buf[i];
-- if (ff_dnxhd_check_header_prefix(state & 0xffffffffff00LL) != 0) {
-- if (!interlaced || dctx->cur_field) {
-+
-+ if (dctx->cur_byte == 24) {
-+ dctx->h = (state >> 32) & 0xFFFF;
-+ } else if (dctx->cur_byte == 26) {
-+ dctx->w = (state >> 32) & 0xFFFF;
-+ } else if (dctx->cur_byte == 42) {
-+ int cid = (state >> 32) & 0xFFFFFFFF;
-+
-+ if (cid <= 0)
-+ continue;
-+
-+ dctx->remaining = avpriv_dnxhd_get_frame_size(cid);
-+ if (dctx->remaining <= 0) {
-+ dctx->remaining = dnxhd_get_hr_frame_size(cid, dctx->w, dctx->h);
-+ if (dctx->remaining <= 0)
-+ return dctx->remaining;
-+ }
-+ if (buf_size - i >= dctx->remaining && (!dctx->interlaced || dctx->cur_field)) {
-+ int remaining = dctx->remaining;
-+
- pc->frame_start_found = 0;
- pc->state64 = -1;
- dctx->interlaced = interlaced;
- dctx->cur_field = 0;
-- return i - 5;
-+ dctx->cur_byte = 0;
-+ dctx->remaining = 0;
-+ return remaining;
- } else {
-- /* continue, to get the second field */
-- dctx->interlaced = interlaced = (state&2)>>1;
-- dctx->cur_field = cur_field = state&1;
-+ dctx->remaining -= buf_size;
- }
- }
- }
-+ } else if (pic_found) {
-+ if (dctx->remaining > buf_size) {
-+ dctx->remaining -= buf_size;
-+ } else {
-+ int remaining = dctx->remaining;
-+
-+ pc->frame_start_found = 0;
-+ pc->state64 = -1;
-+ dctx->interlaced = interlaced;
-+ dctx->cur_field = 0;
-+ dctx->cur_byte = 0;
-+ dctx->remaining = 0;
-+ return remaining;
-+ }
- }
- pc->frame_start_found = pic_found;
- pc->state64 = state;