nut needs crc.o

[ffmpeg] / libavformat / utils.c

diff --git a/libavformat/utils.c b/libavformat/utils.c
index f011bc2d6506a0d56eede310fb234badd34483a4..2c882faf4401bae85ee2d45390120204d880ffba 100644 (file)
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -17,6 +17,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 #include "avformat.h"
+#include "allformats.h"
 
 #undef NDEBUG
 #include <assert.h>
@@ -26,6 +27,10 @@
  * Various utility functions for using ffmpeg library.
  */
 
+static void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den);
+static void av_frac_add(AVFrac *f, int64_t incr);
+static void av_frac_set(AVFrac *f, int64_t val);
+
 /** head of registered input format linked list. */
 AVInputFormat *first_iformat = NULL;
 /** head of registered output format linked list. */
@@ -85,11 +90,13 @@ AVOutputFormat *guess_format(const char *short_name, const char *filename,
     int score_max, score;
 
     /* specific test for image sequences */
+#ifdef CONFIG_IMAGE2_MUXER
     if (!short_name && filename &&
         filename_number_test(filename) >= 0 &&
         av_guess_image2_codec(filename) != CODEC_ID_NONE) {
         return guess_format("image2", NULL, NULL);
     }
+#endif
     if (!short_name && filename &&
         filename_number_test(filename) >= 0 &&
         guess_image_format(filename)) {
@@ -146,9 +153,11 @@ enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
     if(type == CODEC_TYPE_VIDEO){
         enum CodecID codec_id= CODEC_ID_NONE;
 
+#ifdef CONFIG_IMAGE2_MUXER
         if(!strcmp(fmt->name, "image2") || !strcmp(fmt->name, "image2pipe")){
             codec_id= av_guess_image2_codec(filename);
         }
+#endif
         if(codec_id == CODEC_ID_NONE)
             codec_id= fmt->video_codec;
         return codec_id;
@@ -342,7 +351,7 @@ void fifo_realloc(FifoBuffer *f, unsigned int new_size){
     }
 }
 
-void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr)
+void fifo_write(FifoBuffer *f, const uint8_t *buf, int size, uint8_t **wptr_ptr)
 {
     int len;
     uint8_t *wptr;
@@ -594,7 +603,7 @@ int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
 
     /* XXX: suppress this hack for redirectors */
 #ifdef CONFIG_NETWORK
-    if (fmt == &redir_demux) {
+    if (fmt == &redir_demuxer) {
         err = redir_open(ic_ptr, pb);
         url_fclose(pb);
         return err;
@@ -648,48 +657,17 @@ static int get_audio_frame_size(AVCodecContext *enc, int size)
     int frame_size;
 
     if (enc->frame_size <= 1) {
-        /* specific hack for pcm codecs because no frame size is
-           provided */
-        switch(enc->codec_id) {
-        case CODEC_ID_PCM_S32LE:
-        case CODEC_ID_PCM_S32BE:
-        case CODEC_ID_PCM_U32LE:
-        case CODEC_ID_PCM_U32BE:
-            if (enc->channels == 0)
-                return -1;
-            frame_size = size / (4 * enc->channels);
-            break;
-        case CODEC_ID_PCM_S24LE:
-        case CODEC_ID_PCM_S24BE:
-        case CODEC_ID_PCM_U24LE:
-        case CODEC_ID_PCM_U24BE:
-        case CODEC_ID_PCM_S24DAUD:
-            if (enc->channels == 0)
-                return -1;
-            frame_size = size / (3 * enc->channels);
-            break;
-        case CODEC_ID_PCM_S16LE:
-        case CODEC_ID_PCM_S16BE:
-        case CODEC_ID_PCM_U16LE:
-        case CODEC_ID_PCM_U16BE:
-            if (enc->channels == 0)
-                return -1;
-            frame_size = size / (2 * enc->channels);
-            break;
-        case CODEC_ID_PCM_S8:
-        case CODEC_ID_PCM_U8:
-        case CODEC_ID_PCM_MULAW:
-        case CODEC_ID_PCM_ALAW:
+        int bits_per_sample = av_get_bits_per_sample(enc->codec_id);
+
+        if (bits_per_sample) {
             if (enc->channels == 0)
                 return -1;
-            frame_size = size / (enc->channels);
-            break;
-        default:
+            frame_size = (size << 3) / (bits_per_sample * enc->channels);
+        } else {
             /* used for example by ADPCM codecs */
             if (enc->bit_rate == 0)
                 return -1;
             frame_size = (size * 8 * enc->sample_rate) / enc->bit_rate;
-            break;
         }
     } else {
         frame_size = enc->frame_size;
@@ -1756,7 +1734,9 @@ static void av_estimate_timings(AVFormatContext *ic)
     }
     ic->file_size = file_size;
 
-    if ((ic->iformat == &mpegps_demux || ic->iformat == &mpegts_demux) && file_size && !ic->pb.is_streamed) {
+    if ((!strcmp(ic->iformat->name, "mpeg") ||
+         !strcmp(ic->iformat->name, "mpegts")) &&
+        file_size && !ic->pb.is_streamed) {
         /* get accurate estimate from the PTSes */
         av_estimate_timings_from_pts(ic);
     } else if (av_has_timings(ic)) {
@@ -1846,7 +1826,7 @@ static int try_decode_frame(AVStream *st, const uint8_t *data, int size)
 #define MAX_READ_SIZE        5000000
 
 /* maximum duration until we stop analysing the stream */
-#define MAX_STREAM_DURATION  ((int)(AV_TIME_BASE * 2.0))
+#define MAX_STREAM_DURATION  ((int)(AV_TIME_BASE * 3.0))
 
 /**
  * Read the beginning of a media file to get stream information. This
@@ -1935,11 +1915,10 @@ int av_find_stream_info(AVFormatContext *ic)
                     char buf[256];
                     avcodec_string(buf, sizeof(buf), st->codec, 0);
                     av_log(ic, AV_LOG_INFO, "Could not find codec parameters (%s)\n", buf);
-                    break;
+                } else {
+                    ret = 0;
                 }
             }
-            if (i == ic->nb_streams)
-                ret = 0;
             break;
         }
 
@@ -1992,8 +1971,9 @@ int av_find_stream_info(AVFormatContext *ic)
             int i= st->parser->parser->split(st->codec, pkt->data, pkt->size);
             if(i){
                 st->codec->extradata_size= i;
-                st->codec->extradata= av_malloc(st->codec->extradata_size);
+                st->codec->extradata= av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
                 memcpy(st->codec->extradata, pkt->data, st->codec->extradata_size);
+                memset(st->codec->extradata + i, 0, FF_INPUT_BUFFER_PADDING_SIZE);
             }
         }
 
@@ -3147,7 +3127,7 @@ void av_set_pts_info(AVStream *s, int pts_wrap_bits,
  * @param num must be >= 0
  * @param den must be >= 1
  */
-void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
+static void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
 {
     num += (den >> 1);
     if (num >= den) {
@@ -3162,7 +3142,7 @@ void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den)
 /**
  * Set f to (val + 0.5).
  */
-void av_frac_set(AVFrac *f, int64_t val)
+static void av_frac_set(AVFrac *f, int64_t val)
 {
     f->val = val;
     f->num = f->den >> 1;
@@ -3174,7 +3154,7 @@ void av_frac_set(AVFrac *f, int64_t val)
  * @param f fractional number
  * @param incr increment, can be positive or negative
  */
-void av_frac_add(AVFrac *f, int64_t incr)
+static void av_frac_add(AVFrac *f, int64_t incr)
 {
     int64_t num, den;