lavu/opt: allow to set sample and pixel format with av_opt_set_int()
[ffmpeg.git] / libavdevice / alsa-audio-enc.c
index 0bc53b6..403a44f 100644 (file)
@@ -38,8 +38,9 @@
  */
 
 #include <alsa/asoundlib.h>
-#include "libavformat/avformat.h"
 
+#include "libavformat/internal.h"
+#include "avdevice.h"
 #include "alsa-audio.h"
 
 static av_cold int audio_write_header(AVFormatContext *s1)
@@ -47,7 +48,7 @@ static av_cold int audio_write_header(AVFormatContext *s1)
     AlsaData *s = s1->priv_data;
     AVStream *st;
     unsigned int sample_rate;
-    enum CodecID codec_id;
+    enum AVCodecID codec_id;
     int res;
 
     st = s1->streams[0];
@@ -61,6 +62,7 @@ static av_cold int audio_write_header(AVFormatContext *s1)
                st->codec->sample_rate, sample_rate);
         goto fail;
     }
+    avpriv_set_pts_info(st, 64, 1, sample_rate);
 
     return res;
 
@@ -101,16 +103,26 @@ static int audio_write_packet(AVFormatContext *s1, AVPacket *pkt)
     return 0;
 }
 
+static void
+audio_get_output_timestamp(AVFormatContext *s1, int stream,
+    int64_t *dts, int64_t *wall)
+{
+    AlsaData *s  = s1->priv_data;
+    snd_pcm_sframes_t delay = 0;
+    *wall = av_gettime();
+    snd_pcm_delay(s->h, &delay);
+    *dts = s1->streams[0]->cur_dts - delay;
+}
+
 AVOutputFormat ff_alsa_muxer = {
-    "alsa",
-    NULL_IF_CONFIG_SMALL("ALSA audio output"),
-    "",
-    "",
-    sizeof(AlsaData),
-    DEFAULT_CODEC_ID,
-    CODEC_ID_NONE,
-    audio_write_header,
-    audio_write_packet,
-    ff_alsa_close,
-    .flags = AVFMT_NOFILE,
+    .name           = "alsa",
+    .long_name      = NULL_IF_CONFIG_SMALL("ALSA audio output"),
+    .priv_data_size = sizeof(AlsaData),
+    .audio_codec    = DEFAULT_CODEC_ID,
+    .video_codec    = AV_CODEC_ID_NONE,
+    .write_header   = audio_write_header,
+    .write_packet   = audio_write_packet,
+    .write_trailer  = ff_alsa_close,
+    .get_output_timestamp = audio_get_output_timestamp,
+    .flags          = AVFMT_NOFILE,
 };