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authorMax Kellermann <max@duempel.org>2010-07-20 18:38:10 +0200
committerMax Kellermann <max@duempel.org>2010-07-20 23:03:54 +0200
commit4364b30c423d230568a4b4f47a0e3b5fa9ff831b (patch)
treebf37bb9e18be66dce0fb23ccd99198c9efa408a6 /src/decoder
parentc0da938d4f9e6b15cc5cca80090a15aa89ff3d2b (diff)
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decoder/mad: move RVA2 code to tag_rva2.c
Diffstat (limited to '')
-rw-r--r--src/decoder/mad_decoder_plugin.c91
1 files changed, 2 insertions, 89 deletions
diff --git a/src/decoder/mad_decoder_plugin.c b/src/decoder/mad_decoder_plugin.c
index 037fdfb15..5aa09b336 100644
--- a/src/decoder/mad_decoder_plugin.c
+++ b/src/decoder/mad_decoder_plugin.c
@@ -21,6 +21,7 @@
#include "decoder_api.h"
#include "conf.h"
#include "tag_id3.h"
+#include "tag_rva2.h"
#include "audio_check.h"
#include <assert.h>
@@ -211,94 +212,6 @@ mp3_fill_buffer(struct mp3_data *data)
}
#ifdef HAVE_ID3TAG
-/* Parse mp3 RVA2 frame. Shamelessly stolen from madplay. */
-static bool
-parse_rva2(struct id3_tag *tag, struct replay_gain_info *replay_gain_info)
-{
- struct id3_frame const * frame;
-
- id3_latin1_t const *id;
- id3_byte_t const *data;
- id3_length_t length;
-
- enum {
- CHANNEL_OTHER = 0x00,
- CHANNEL_MASTER_VOLUME = 0x01,
- CHANNEL_FRONT_RIGHT = 0x02,
- CHANNEL_FRONT_LEFT = 0x03,
- CHANNEL_BACK_RIGHT = 0x04,
- CHANNEL_BACK_LEFT = 0x05,
- CHANNEL_FRONT_CENTRE = 0x06,
- CHANNEL_BACK_CENTRE = 0x07,
- CHANNEL_SUBWOOFER = 0x08
- };
-
- /* relative volume adjustment information */
-
- frame = id3_tag_findframe(tag, "RVA2", 0);
- if (frame == NULL)
- return false;
-
- id = id3_field_getlatin1(id3_frame_field(frame, 0));
- data = id3_field_getbinarydata(id3_frame_field(frame, 1),
- &length);
-
- if (id == NULL || data == NULL)
- return false;
-
- /*
- * "The 'identification' string is used to identify the
- * situation and/or device where this adjustment should apply.
- * The following is then repeated for every channel
- *
- * Type of channel $xx
- * Volume adjustment $xx xx
- * Bits representing peak $xx
- * Peak volume $xx (xx ...)"
- */
-
- while (length >= 4) {
- unsigned int peak_bytes;
-
- peak_bytes = (data[3] + 7) / 8;
- if (4 + peak_bytes > length)
- break;
-
- if (data[0] == CHANNEL_MASTER_VOLUME) {
- signed int voladj_fixed;
- double voladj_float;
-
- /*
- * "The volume adjustment is encoded as a fixed
- * point decibel value, 16 bit signed integer
- * representing (adjustment*512), giving +/- 64
- * dB with a precision of 0.001953125 dB."
- */
-
- voladj_fixed = (data[1] << 8) | (data[2] << 0);
- voladj_fixed |= -(voladj_fixed & 0x8000);
-
- voladj_float = (double) voladj_fixed / 512;
-
- replay_gain_info->tuples[REPLAY_GAIN_TRACK].gain = voladj_float;
- replay_gain_info->tuples[REPLAY_GAIN_ALBUM].gain = voladj_float;
-
- g_debug("parseRVA2: Relative Volume "
- "%+.1f dB adjustment (%s)\n",
- voladj_float, id);
-
- return true;
- }
-
- data += 4 + peak_bytes;
- length -= 4 + peak_bytes;
- }
-
- return false;
-}
-#endif
-
-#ifdef HAVE_ID3TAG
static bool
parse_id3_replay_gain_info(struct replay_gain_info *replay_gain_info,
struct id3_tag *tag)
@@ -342,7 +255,7 @@ parse_id3_replay_gain_info(struct replay_gain_info *replay_gain_info,
return found ||
/* fall back on RVA2 if no replaygain tags found */
- parse_rva2(tag, replay_gain_info);
+ tag_rva2_parse(tag, replay_gain_info);
}
#endif