use ff_neterrno() and FF_NETERROR() for networking error handling

[ffmpeg] / libavformat / yuv4mpeg.c

diff --git a/libavformat/yuv4mpeg.c b/libavformat/yuv4mpeg.c
index 54629efcadf7d9e3f0bcf735cc91f3da6b16f05f..a0a6ba34577f181ee61fb9e95c689158e72bbde2 100644 (file)
--- a/libavformat/yuv4mpeg.c
+++ b/libavformat/yuv4mpeg.c
@@ -2,18 +2,20 @@
  * YUV4MPEG format
  * Copyright (c) 2001, 2002, 2003 Fabrice Bellard.
  *
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * This library 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 this library; 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
  */
 #include "avformat.h"
@@ -22,7 +24,10 @@
 #define Y4M_FRAME_MAGIC "FRAME"
 #define Y4M_LINE_MAX 256
 
-#ifdef CONFIG_MUXERS
+struct frame_attributes {
+    int interlaced_frame;
+    int top_field_first;
+};
 
 static int yuv4_generate_header(AVFormatContext *s, char* buf)
 {
@@ -30,7 +35,7 @@ static int yuv4_generate_header(AVFormatContext *s, char* buf)
     int width, height;
     int raten, rated, aspectn, aspectd, n;
     char inter;
-    char *colorspace = "";
+    const char *colorspace = "";
 
     st = s->streams[0];
     width = st->codec->width;
@@ -166,7 +171,8 @@ static int yuv4_write_trailer(AVFormatContext *s)
     return 0;
 }
 
-AVOutputFormat yuv4mpegpipe_oformat = {
+#ifdef CONFIG_YUV4MPEGPIPE_MUXER
+AVOutputFormat yuv4mpegpipe_muxer = {
     "yuv4mpegpipe",
     "YUV4MPEG pipe format",
     "",
@@ -179,7 +185,7 @@ AVOutputFormat yuv4mpegpipe_oformat = {
     yuv4_write_trailer,
     .flags = AVFMT_RAWPICTURE,
 };
-#endif //CONFIG_MUXERS
+#endif
 
 /* Header size increased to allow room for optional flags */
 #define MAX_YUV4_HEADER 80
@@ -191,9 +197,10 @@ static int yuv4_read_header(AVFormatContext *s, AVFormatParameters *ap)
     char *tokstart,*tokend,*header_end;
     int i;
     ByteIOContext *pb = &s->pb;
-    int width=-1, height=-1, raten=0, rated=0, aspectn=0, aspectd=0,interlaced_frame=0,top_field_first=0;
+    int width=-1, height=-1, raten=0, rated=0, aspectn=0, aspectd=0;
     enum PixelFormat pix_fmt=PIX_FMT_NONE,alt_pix_fmt=PIX_FMT_NONE;
     AVStream *st;
+    struct frame_attributes *s1 = s->priv_data;
 
     for (i=0; i<MAX_YUV4_HEADER; i++) {
         header[i] = get_byte(pb);
@@ -206,6 +213,8 @@ static int yuv4_read_header(AVFormatContext *s, AVFormatParameters *ap)
     if (i == MAX_YUV4_HEADER) return -1;
     if (strncmp(header, Y4M_MAGIC, strlen(Y4M_MAGIC))) return -1;
 
+    s1->interlaced_frame = 0;
+    s1->top_field_first = 0;
     header_end = &header[i+1]; // Include space
     for(tokstart = &header[strlen(Y4M_MAGIC) + 1]; tokstart < header_end; tokstart++) {
         if (*tokstart==0x20) continue;
@@ -247,15 +256,15 @@ static int yuv4_read_header(AVFormatContext *s, AVFormatParameters *ap)
             case '?':
                 break;
             case 'p':
-                interlaced_frame=0;
+                s1->interlaced_frame=0;
                 break;
             case 't':
-                interlaced_frame=1;
-                top_field_first=1;
+                s1->interlaced_frame=1;
+                s1->top_field_first=1;
                 break;
             case 'b':
-                interlaced_frame=1;
-                top_field_first=0;
+                s1->interlaced_frame=1;
+                s1->top_field_first=0;
                 break;
             case 'm':
                 av_log(s, AV_LOG_ERROR, "YUV4MPEG stream contains mixed interlaced and non-interlaced frames.\n");
@@ -338,6 +347,7 @@ static int yuv4_read_packet(AVFormatContext *s, AVPacket *pkt)
     char header[MAX_FRAME_HEADER+1];
     int packet_size, width, height;
     AVStream *st = s->streams[0];
+    struct frame_attributes *s1 = s->priv_data;
 
     for (i=0; i<MAX_FRAME_HEADER; i++) {
         header[i] = get_byte(&s->pb);
@@ -359,6 +369,11 @@ static int yuv4_read_packet(AVFormatContext *s, AVPacket *pkt)
     if (av_get_packet(&s->pb, pkt, packet_size) != packet_size)
         return AVERROR_IO;
 
+    if (s->streams[0]->codec->coded_frame) {
+        s->streams[0]->codec->coded_frame->interlaced_frame = s1->interlaced_frame;
+        s->streams[0]->codec->coded_frame->top_field_first = s1->top_field_first;
+    }
+
     pkt->stream_index = 0;
     return 0;
 }
@@ -371,31 +386,21 @@ static int yuv4_read_close(AVFormatContext *s)
 static int yuv4_probe(AVProbeData *pd)
 {
     /* check file header */
-    if (pd->buf_size <= sizeof(Y4M_MAGIC))
-        return 0;
     if (strncmp(pd->buf, Y4M_MAGIC, sizeof(Y4M_MAGIC)-1)==0)
         return AVPROBE_SCORE_MAX;
     else
         return 0;
 }
 
-AVInputFormat yuv4mpegpipe_iformat = {
+#ifdef CONFIG_YUV4MPEGPIPE_DEMUXER
+AVInputFormat yuv4mpegpipe_demuxer = {
     "yuv4mpegpipe",
     "YUV4MPEG pipe format",
-    0,
+    sizeof(struct frame_attributes),
     yuv4_probe,
     yuv4_read_header,
     yuv4_read_packet,
     yuv4_read_close,
     .extensions = "y4m"
 };
-
-int yuv4mpeg_init(void)
-{
-    av_register_input_format(&yuv4mpegpipe_iformat);
-#ifdef CONFIG_MUXERS
-    av_register_output_format(&yuv4mpegpipe_oformat);
-#endif //CONFIG_MUXERS
-    return 0;
-}
-
+#endif