From 9f74582cea3fd626737cd6785f8ae1da2491fab5 Mon Sep 17 00:00:00 2001
From: Luca Abeni <lucabe72@email.it>
Date: Mon, 19 Nov 2007 07:54:04 +0000
Subject: [PATCH] Do not use perror() in audio, video, and DV grabbers

Originally committed as revision 11058 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/audio.c  |  8 ++++----
 libavformat/dv1394.c | 16 ++++++++--------
 libavformat/v4l.c    |  8 ++++----
 3 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/libavformat/audio.c b/libavformat/audio.c
index 6122b8be0..151cbffd5 100644
--- a/libavformat/audio.c
+++ b/libavformat/audio.c
@@ -58,7 +58,7 @@ static int audio_open(AudioData *s, int is_output, const char *audio_device)
     else
         audio_fd = open(audio_device, O_RDONLY);
     if (audio_fd < 0) {
-        perror(audio_device);
+        av_log(NULL, AV_LOG_ERROR, "%s: %s\n", audio_device, strerror(errno));
         return AVERROR(EIO);
     }
 
@@ -114,14 +114,14 @@ static int audio_open(AudioData *s, int is_output, const char *audio_device)
     }
     err=ioctl(audio_fd, SNDCTL_DSP_SETFMT, &tmp);
     if (err < 0) {
-        perror("SNDCTL_DSP_SETFMT");
+        av_log(NULL, AV_LOG_ERROR, "SNDCTL_DSP_SETFMT: %s\n", strerror(errno));
         goto fail;
     }
 
     tmp = (s->channels == 2);
     err = ioctl(audio_fd, SNDCTL_DSP_STEREO, &tmp);
     if (err < 0) {
-        perror("SNDCTL_DSP_STEREO");
+        av_log(NULL, AV_LOG_ERROR, "SNDCTL_DSP_STEREO: %s\n", strerror(errno));
         goto fail;
     }
     if (tmp)
@@ -130,7 +130,7 @@ static int audio_open(AudioData *s, int is_output, const char *audio_device)
     tmp = s->sample_rate;
     err = ioctl(audio_fd, SNDCTL_DSP_SPEED, &tmp);
     if (err < 0) {
-        perror("SNDCTL_DSP_SPEED");
+        av_log(NULL, AV_LOG_ERROR, "SNDCTL_DSP_SPEED: %s\n", strerror(errno));
         goto fail;
     }
     s->sample_rate = tmp; /* store real sample rate */
diff --git a/libavformat/dv1394.c b/libavformat/dv1394.c
index 93e08ee6e..8e2e2f607 100644
--- a/libavformat/dv1394.c
+++ b/libavformat/dv1394.c
@@ -74,7 +74,7 @@ static int dv1394_start(struct dv1394_data *dv)
 {
     /* Tell DV1394 driver to enable receiver */
     if (ioctl(dv->fd, DV1394_START_RECEIVE, 0) < 0) {
-        perror("Failed to start receiver");
+        av_log(NULL, AV_LOG_ERROR, "Failed to start receiver: %s\n", strerror(errno));
         return -1;
     }
     return 0;
@@ -101,19 +101,19 @@ static int dv1394_read_header(AVFormatContext * context, AVFormatParameters * ap
     /* Open and initialize DV1394 device */
     dv->fd = open(context->filename, O_RDONLY);
     if (dv->fd < 0) {
-        perror("Failed to open DV interface");
+        av_log(context, AV_LOG_ERROR, "Failed to open DV interface: %s\n", strerror(errno));
         goto failed;
     }
 
     if (dv1394_reset(dv) < 0) {
-        perror("Failed to initialize DV interface");
+        av_log(context, AV_LOG_ERROR, "Failed to initialize DV interface: %s\n", strerror(errno));
         goto failed;
     }
 
     dv->ring = mmap(NULL, DV1394_PAL_FRAME_SIZE * DV1394_RING_FRAMES,
                     PROT_READ, MAP_PRIVATE, dv->fd, 0);
     if (dv->ring == MAP_FAILED) {
-        perror("Failed to mmap DV ring buffer");
+        av_log(context, AV_LOG_ERROR, "Failed to mmap DV ring buffer: %s\n", strerror(errno));
         goto failed;
     }
 
@@ -162,12 +162,12 @@ restart_poll:
         if (poll(&p, 1, -1) < 0) {
             if (errno == EAGAIN || errno == EINTR)
                 goto restart_poll;
-            perror("Poll failed");
+            av_log(context, AV_LOG_ERROR, "Poll failed: %s\n", strerror(errno));
             return AVERROR(EIO);
         }
 
         if (ioctl(dv->fd, DV1394_GET_STATUS, &s) < 0) {
-            perror("Failed to get status");
+            av_log(context, AV_LOG_ERROR, "Failed to get status: %s\n", strerror(errno));
             return AVERROR(EIO);
         }
 #ifdef DV1394_DEBUG
@@ -213,11 +213,11 @@ static int dv1394_close(AVFormatContext * context)
 
     /* Shutdown DV1394 receiver */
     if (ioctl(dv->fd, DV1394_SHUTDOWN, 0) < 0)
-        perror("Failed to shutdown DV1394");
+        av_log(context, AV_LOG_ERROR, "Failed to shutdown DV1394: %s\n", strerror(errno));
 
     /* Unmap ring buffer */
     if (munmap(dv->ring, DV1394_NTSC_FRAME_SIZE * DV1394_RING_FRAMES) < 0)
-        perror("Failed to munmap DV1394 ring buffer");
+        av_log(context, AV_LOG_ERROR, "Failed to munmap DV1394 ring buffer: %s\n", strerror(errno));
 
     close(dv->fd);
     av_free(dv->dv_demux);
diff --git a/libavformat/v4l.c b/libavformat/v4l.c
index ac3cb0eda..800537855 100644
--- a/libavformat/v4l.c
+++ b/libavformat/v4l.c
@@ -119,12 +119,12 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
 
     video_fd = open(s1->filename, O_RDWR);
     if (video_fd < 0) {
-        perror(s1->filename);
+        av_log(s1, AV_LOG_ERROR, "%s: %s\n", s1->filename, strerror(errno));
         goto fail;
     }
 
     if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
-        perror("VIDIOCGCAP");
+        av_log(s1, AV_LOG_ERROR, "VIDIOCGCAP: %s\n", strerror(errno));
         goto fail;
     }
 
@@ -221,7 +221,7 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
         if ((unsigned char*)-1 == s->video_buf) {
             s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_PRIVATE,video_fd,0);
             if ((unsigned char*)-1 == s->video_buf) {
-                perror("mmap");
+                av_log(s1, AV_LOG_ERROR, "mmap: %s\n", strerror(errno));
                 goto fail;
             }
         }
@@ -298,7 +298,7 @@ static int v4l_mm_read_picture(VideoData *s, uint8_t *buf)
         if (errno == EAGAIN)
             av_log(NULL, AV_LOG_ERROR, "Cannot Sync\n");
         else
-            perror("VIDIOCMCAPTURE");
+            av_log(NULL, AV_LOG_ERROR, "VIDIOCMCAPTURE: %s\n", strerror(errno));
         return AVERROR(EIO);
     }
 
-- 
2.11.0