1 files changed, 125 insertions, 29 deletions

diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c
index 24d06f3087..dd47f532fd 100644
--- a/libavcodec/rawdec.c
+++ b/libavcodec/rawdec.c
@@ -2,20 +2,20 @@
  * Raw Video Decoder
  * Copyright (c) 2001 Fabrice Bellard
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -26,27 +26,44 @@
 
 #include "avcodec.h"
 #include "raw.h"
+#include "libavutil/avassert.h"
 #include "libavutil/buffer.h"
 #include "libavutil/common.h"
 #include "libavutil/intreadwrite.h"
 #include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
 
 typedef struct RawVideoContext {
+    AVClass *av_class;
     AVBufferRef *palette;
     int frame_size;  /* size of the frame in bytes */
     int flip;
     int is_2_4_bpp; // 2 or 4 bpp raw in avi/mov
     int is_yuv2;
+    int tff;
 } RawVideoContext;
 
+static const AVOption options[]={
+{"top", "top field first", offsetof(RawVideoContext, tff), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM|AV_OPT_FLAG_VIDEO_PARAM},
+{NULL}
+};
+
+static const AVClass rawdec_class = {
+    .class_name = "rawdec",
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 static const PixelFormatTag pix_fmt_bps_avi[] = {
+    { AV_PIX_FMT_MONOWHITE, 1 },
+    { AV_PIX_FMT_PAL8,    2 },
     { AV_PIX_FMT_PAL8,    4 },
     { AV_PIX_FMT_PAL8,    8 },
-    { AV_PIX_FMT_RGB444, 12 },
-    { AV_PIX_FMT_RGB555, 15 },
-    { AV_PIX_FMT_RGB555, 16 },
+    { AV_PIX_FMT_RGB444LE, 12 },
+    { AV_PIX_FMT_RGB555LE, 15 },
+    { AV_PIX_FMT_RGB555LE, 16 },
     { AV_PIX_FMT_BGR24,  24 },
-    { AV_PIX_FMT_RGB32,  32 },
+    { AV_PIX_FMT_BGRA,   32 },
     { AV_PIX_FMT_NONE,    0 },
 };
 
@@ -64,7 +81,7 @@ static const PixelFormatTag pix_fmt_bps_mov[] = {
     { AV_PIX_FMT_NONE,      0 },
 };
 
-static enum AVPixelFormat find_pix_fmt(const PixelFormatTag *tags,
+enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags,
                                        unsigned int fourcc)
 {
     while (tags->pix_fmt >= 0) {
@@ -72,24 +89,32 @@ static enum AVPixelFormat find_pix_fmt(const PixelFormatTag *tags,
             return tags->pix_fmt;
         tags++;
     }
-    return AV_PIX_FMT_YUV420P;
+    return AV_PIX_FMT_NONE;
+}
+
+#if LIBAVCODEC_VERSION_MAJOR < 55
+enum AVPixelFormat ff_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
+{
+    return avpriv_find_pix_fmt(tags, fourcc);
 }
+#endif
 
 static av_cold int raw_init_decoder(AVCodecContext *avctx)
 {
     RawVideoContext *context = avctx->priv_data;
     const AVPixFmtDescriptor *desc;
 
-    if (avctx->codec_tag == MKTAG('r', 'a', 'w', ' '))
-        avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_mov,
+    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);
     else if (avctx->codec_tag == MKTAG('W', 'R', 'A', 'W'))
-        avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_avi,
+        avctx->pix_fmt = avpriv_find_pix_fmt(pix_fmt_bps_avi,
                                       avctx->bits_per_coded_sample);
     else if (avctx->codec_tag)
-        avctx->pix_fmt = find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag);
+        avctx->pix_fmt = avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag);
     else if (avctx->pix_fmt == AV_PIX_FMT_NONE && avctx->bits_per_coded_sample)
-        avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_avi,
+        avctx->pix_fmt = avpriv_find_pix_fmt(pix_fmt_bps_avi,
                                       avctx->bits_per_coded_sample);
 
     desc = av_pix_fmt_desc_get(avctx->pix_fmt);
@@ -108,15 +133,21 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx)
             memset(context->palette->data, 0, AVPALETTE_SIZE);
     }
 
-    context->frame_size = avpicture_get_size(avctx->pix_fmt, avctx->width,
-                                             avctx->height);
     if ((avctx->bits_per_coded_sample == 4 || avctx->bits_per_coded_sample == 2) &&
         avctx->pix_fmt == AV_PIX_FMT_PAL8 &&
-       (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' ')))
+       (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))) {
         context->is_2_4_bpp = 1;
+        context->frame_size = avpicture_get_size(avctx->pix_fmt,
+                                                 FFALIGN(avctx->width, 16),
+                                                 avctx->height);
+    } else {
+        context->frame_size = avpicture_get_size(avctx->pix_fmt, avctx->width,
+                                                 avctx->height);
+    }
 
     if ((avctx->extradata_size >= 9 &&
          !memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
+        avctx->codec_tag == MKTAG('c','y','u','v') ||
         avctx->codec_tag == MKTAG(3, 0, 0, 0) ||
         avctx->codec_tag == MKTAG('W','R','A','W'))
         context->flip = 1;
@@ -141,8 +172,9 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
     RawVideoContext *context       = avctx->priv_data;
     const uint8_t *buf             = avpkt->data;
     int buf_size                   = avpkt->size;
+    int linesize_align             = 4;
+    int res, len;
     int need_copy                  = !avpkt->buf || context->is_2_4_bpp || context->is_yuv2;
-    int res;
 
     AVFrame   *frame   = data;
     AVPicture *picture = data;
@@ -151,13 +183,19 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
     frame->key_frame        = 1;
     frame->reordered_opaque = avctx->reordered_opaque;
     frame->pkt_pts          = avctx->pkt->pts;
+    av_frame_set_pkt_pos     (frame, avctx->pkt->pos);
+    av_frame_set_pkt_duration(frame, avctx->pkt->duration);
+
+    if (context->tff >= 0) {
+        frame->interlaced_frame = 1;
+        frame->top_field_first  = context->tff;
+    }
 
-    if (buf_size < context->frame_size - (avctx->pix_fmt == AV_PIX_FMT_PAL8 ?
-                                          AVPALETTE_SIZE : 0))
-        return -1;
+    if ((res = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
+        return res;
 
     if (need_copy)
-        frame->buf[0] = av_buffer_alloc(context->frame_size);
+        frame->buf[0] = av_buffer_alloc(FFMAX(context->frame_size, buf_size));
     else
         frame->buf[0] = av_buffer_ref(avpkt->buf);
     if (!frame->buf[0])
@@ -169,21 +207,24 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
         uint8_t *dst = frame->buf[0]->data;
         buf_size = context->frame_size - AVPALETTE_SIZE;
         if (avctx->bits_per_coded_sample == 4) {
-            for (i = 0; 2 * i + 1 < buf_size; i++) {
+            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 {
-            for (i = 0; 4 * i + 3 < buf_size; i++) {
+            av_assert0(avctx->bits_per_coded_sample == 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;
                 dst[4 * i + 2] = buf[i] >> 2 & 3;
                 dst[4 * i + 3] = buf[i]      & 3;
             }
+            linesize_align = 16;
         }
         buf = dst;
     } else if (need_copy) {
-        memcpy(frame->buf[0]->data, buf, FFMIN(buf_size, context->frame_size));
+        memcpy(frame->buf[0]->data, buf, buf_size);
         buf = frame->buf[0]->data;
     }
 
@@ -191,9 +232,18 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
         avctx->codec_tag == MKTAG('A', 'V', 'u', 'p'))
         buf += buf_size - context->frame_size;
 
+    len = context->frame_size - (avctx->pix_fmt==AV_PIX_FMT_PAL8 ? AVPALETTE_SIZE : 0);
+    if (buf_size < len) {
+        av_log(avctx, AV_LOG_ERROR, "Invalid buffer size, packet size %d < expected frame_size %d\n", buf_size, len);
+        av_buffer_unref(&frame->buf[0]);
+        return AVERROR(EINVAL);
+    }
+
     if ((res = avpicture_fill(picture, buf, avctx->pix_fmt,
-                              avctx->width, avctx->height)) < 0)
+                              avctx->width, avctx->height)) < 0) {
+        av_buffer_unref(&frame->buf[0]);
         return res;
+    }
 
     if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
         const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE,
@@ -202,20 +252,44 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
         if (pal) {
             av_buffer_unref(&context->palette);
             context->palette = av_buffer_alloc(AVPALETTE_SIZE);
-            if (!context->palette)
+            if (!context->palette) {
+                av_buffer_unref(&frame->buf[0]);
                 return AVERROR(ENOMEM);
+            }
             memcpy(context->palette->data, pal, AVPALETTE_SIZE);
             frame->palette_has_changed = 1;
         }
     }
 
+    if ((avctx->pix_fmt==AV_PIX_FMT_BGR24    ||
+        avctx->pix_fmt==AV_PIX_FMT_GRAY8    ||
+        avctx->pix_fmt==AV_PIX_FMT_RGB555LE ||
+        avctx->pix_fmt==AV_PIX_FMT_RGB555BE ||
+        avctx->pix_fmt==AV_PIX_FMT_RGB565LE ||
+        avctx->pix_fmt==AV_PIX_FMT_MONOWHITE ||
+        avctx->pix_fmt==AV_PIX_FMT_PAL8) &&
+        FFALIGN(frame->linesize[0], linesize_align) * avctx->height <= buf_size)
+        frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align);
+
+    if (avctx->pix_fmt == AV_PIX_FMT_NV12 && avctx->codec_tag == MKTAG('N', 'V', '1', '2') &&
+        FFALIGN(frame->linesize[0], linesize_align) * avctx->height +
+        FFALIGN(frame->linesize[1], linesize_align) * ((avctx->height + 1) / 2) <= buf_size) {
+        int la0 = FFALIGN(frame->linesize[0], linesize_align);
+        frame->data[1] += (la0 - frame->linesize[0]) * avctx->height;
+        frame->linesize[0] = la0;
+        frame->linesize[1] = FFALIGN(frame->linesize[1], linesize_align);
+    }
+
     if ((avctx->pix_fmt == AV_PIX_FMT_PAL8 && buf_size < context->frame_size) ||
         (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)) {
         frame->buf[1]  = av_buffer_ref(context->palette);
-        if (!frame->buf[1])
+        if (!frame->buf[1]) {
+            av_buffer_unref(&frame->buf[0]);
             return AVERROR(ENOMEM);
+        }
         frame->data[1] = frame->buf[1]->data;
     }
+
     if (avctx->pix_fmt == AV_PIX_FMT_BGR24 &&
         ((frame->linesize[0] + 3) & ~3) * avctx->height <= buf_size)
         frame->linesize[0] = (frame->linesize[0] + 3) & ~3;
@@ -229,6 +303,11 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
         avctx->codec_tag == MKTAG('Y', 'V', 'U', '9'))
         FFSWAP(uint8_t *, picture->data[1], picture->data[2]);
 
+    if (avctx->codec_tag == AV_RL32("I420") && (avctx->width+1)*(avctx->height+1) * 3/2 == buf_size) {
+        picture->data[1] = picture->data[1] +  (avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height;
+        picture->data[2] = picture->data[2] + ((avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height)*5/4;
+    }
+
     if (avctx->codec_tag == AV_RL32("yuv2") &&
         avctx->pix_fmt   == AV_PIX_FMT_YUYV422) {
         int x, y;
@@ -239,6 +318,22 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
             line += picture->linesize[0];
         }
     }
+    if (avctx->codec_tag == AV_RL32("YVYU") &&
+        avctx->pix_fmt   == AV_PIX_FMT_YUYV422) {
+        int x, y;
+        uint8_t *line = picture->data[0];
+        for(y = 0; y < avctx->height; y++) {
+            for(x = 0; x < avctx->width - 1; x += 2)
+                FFSWAP(uint8_t, line[2*x + 1], line[2*x + 3]);
+            line += picture->linesize[0];
+        }
+    }
+
+    if (avctx->field_order > AV_FIELD_PROGRESSIVE) { /* we have interlaced material flagged in container */
+        frame->interlaced_frame = 1;
+        if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB)
+            frame->top_field_first = 1;
+    }
 
     *got_frame = 1;
     return buf_size;
@@ -261,4 +356,5 @@ AVCodec ff_rawvideo_decoder = {
     .init           = raw_init_decoder,
     .close          = raw_close_decoder,
     .decode         = raw_decode,
+    .priv_class     = &rawdec_class,
 };