From b0ac9c1ffb46aa06541b276f209d80eba24e99df Mon Sep 17 00:00:00 2001 From: Jon Bergli Heier Date: Tue, 17 Aug 2010 18:18:13 +0200 Subject: Added mpg123 decoder. --- decoders/decoder_mpg123.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 decoders/decoder_mpg123.c diff --git a/decoders/decoder_mpg123.c b/decoders/decoder_mpg123.c new file mode 100644 index 0000000..4d93f27 --- /dev/null +++ b/decoders/decoder_mpg123.c @@ -0,0 +1,79 @@ +#include "decoder.h" + +#include +#include + +static gboolean mpg123_decoder_init(gpointer *data) { + mpg123_handle *handle; + + int error; + mpg123_init(); + + handle = mpg123_new("generic", &error); + if(error) { + g_warning("Error: %s", mpg123_plain_strerror(error)); + return FALSE; + } + + error = mpg123_open_feed(handle); + if(error) { + g_warning("Error: %s", mpg123_plain_strerror(error)); + } + + /* force format for now */ + mpg123_format_none(handle); + mpg123_format(handle, 44100, 2, MPG123_ENC_SIGNED_16); + + *data = handle; + + return TRUE; +} + +static gssize mpg123_decoder_decode(gpointer data, const guchar *inbuf, + gsize inbuf_size, guchar *outbuf, gsize outbuf_size) { + mpg123_handle *handle = data; + gssize size; + int ret; + + if(mpg123_feed(handle, inbuf, inbuf_size) != MPG123_OK) { + g_debug("asdfasdf"); + g_warning(mpg123_strerror(handle)); + return -1; + } + + ret = mpg123_read(handle, outbuf, outbuf_size, (size_t*)&size); + + if(ret == MPG123_NEW_FORMAT) { + long rate; + int channels, enc; + mpg123_getformat(handle, &rate, &channels, &enc); + g_debug("New format: %li Hz, %i channels, encoding value %i", rate, channels, enc); + ret = mpg123_read(handle, outbuf, outbuf_size, (size_t*)&size); + } + + if(ret != MPG123_OK && ret != MPG123_DONE && ret != MPG123_NEW_FORMAT + && ret != MPG123_NEED_MORE) { + g_warning(mpg123_plain_strerror(ret)); + return -1; + } + + return size; +} + +static void mpg123_decoder_close(gpointer data) { + mpg123_handle *handle = data; + mpg123_close(handle); + mpg123_delete(handle); +} + +static const gchar * const decoder_mpg123_extensions[] = { + "mp3", NULL, +}; + +const struct decoder_plugin decoder_mpg123_decoder = { + .name = "mpg123 decoder", + .extensions = decoder_mpg123_extensions, + .init = mpg123_decoder_init, + .decode = mpg123_decoder_decode, + .close = mpg123_decoder_close, +}; -- cgit v1.2.3