avformat/matroskaenc: implement AVOutputFormat.query_codec for webm
[ffmpeg.git] / libavformat / mm.c
index d097139..8a1382e 100644 (file)
  *  http://wiki.multimedia.cx/index.php?title=American_Laser_Games_MM
  */
 
+#include "libavutil/channel_layout.h"
 #include "libavutil/intreadwrite.h"
 #include "avformat.h"
+#include "internal.h"
 
 #define MM_PREAMBLE_SIZE    6
 
@@ -52,7 +54,7 @@
 #define MM_PALETTE_COUNT    128
 #define MM_PALETTE_SIZE     (MM_PALETTE_COUNT*3)
 
-typedef struct {
+typedef struct MmDemuxContext {
   unsigned int audio_pts, video_pts;
 } MmDemuxContext;
 
@@ -77,11 +79,10 @@ static int probe(AVProbeData *p)
         return 0;
 
     /* only return half certainty since this check is a bit sketchy */
-    return AVPROBE_SCORE_MAX / 2;
+    return AVPROBE_SCORE_EXTENSION;
 }
 
-static int read_header(AVFormatContext *s,
-                           AVFormatParameters *ap)
+static int read_header(AVFormatContext *s)
 {
     MmDemuxContext *mm = s->priv_data;
     AVIOContext *pb = s->pb;
@@ -105,27 +106,28 @@ static int read_header(AVFormatContext *s,
     avio_skip(pb, length - 10);  /* unknown data */
 
     /* video stream */
-    st = av_new_stream(s, 0);
+    st = avformat_new_stream(s, NULL);
     if (!st)
         return AVERROR(ENOMEM);
-    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-    st->codec->codec_id = CODEC_ID_MMVIDEO;
-    st->codec->codec_tag = 0;  /* no fourcc */
-    st->codec->width = width;
-    st->codec->height = height;
-    av_set_pts_info(st, 64, 1, frame_rate);
+    st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+    st->codecpar->codec_id = AV_CODEC_ID_MMVIDEO;
+    st->codecpar->codec_tag = 0;  /* no fourcc */
+    st->codecpar->width = width;
+    st->codecpar->height = height;
+    avpriv_set_pts_info(st, 64, 1, frame_rate);
 
     /* audio stream */
     if (length == MM_HEADER_LEN_AV) {
-        st = av_new_stream(s, 0);
+        st = avformat_new_stream(s, NULL);
         if (!st)
             return AVERROR(ENOMEM);
-        st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
-        st->codec->codec_tag = 0; /* no fourcc */
-        st->codec->codec_id = CODEC_ID_PCM_U8;
-        st->codec->channels = 1;
-        st->codec->sample_rate = 8000;
-        av_set_pts_info(st, 64, 1, 8000); /* 8000 hz */
+        st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
+        st->codecpar->codec_tag = 0; /* no fourcc */
+        st->codecpar->codec_id = AV_CODEC_ID_PCM_U8;
+        st->codecpar->channels = 1;
+        st->codecpar->channel_layout = AV_CH_LAYOUT_MONO;
+        st->codecpar->sample_rate = 8000;
+        avpriv_set_pts_info(st, 64, 1, 8000); /* 8000 hz */
     }
 
     mm->audio_pts = 0;
@@ -174,7 +176,6 @@ static int read_packet(AVFormatContext *s,
         case MM_TYPE_AUDIO :
             if (av_get_packet(s->pb, pkt, length)<0)
                 return AVERROR(ENOMEM);
-            pkt->size = length;
             pkt->stream_index = 1;
             pkt->pts = mm->audio_pts++;
             return 0;
@@ -187,10 +188,10 @@ static int read_packet(AVFormatContext *s,
 }
 
 AVInputFormat ff_mm_demuxer = {
-    "mm",
-    NULL_IF_CONFIG_SMALL("American Laser Games MM format"),
-    sizeof(MmDemuxContext),
-    probe,
-    read_header,
-    read_packet,
+    .name           = "mm",
+    .long_name      = NULL_IF_CONFIG_SMALL("American Laser Games MM"),
+    .priv_data_size = sizeof(MmDemuxContext),
+    .read_probe     = probe,
+    .read_header    = read_header,
+    .read_packet    = read_packet,
 };