diff options
Diffstat (limited to 'src/decoder/mp3_plugin.c')
| -rw-r--r-- | src/decoder/mp3_plugin.c | 134 |
1 files changed, 74 insertions, 60 deletions
diff --git a/src/decoder/mp3_plugin.c b/src/decoder/mp3_plugin.c index 8a1f87a31..72b03c8d8 100644 --- a/src/decoder/mp3_plugin.c +++ b/src/decoder/mp3_plugin.c @@ -912,12 +912,81 @@ mp3_send_pcm(struct mp3_data *data, unsigned i, unsigned pcm_length, return DECODE_COMMAND_NONE; } +/** + * Synthesize the current frame and send it via decoder_data(). + */ +static enum decoder_command +mp3_synth_and_send(struct mp3_data *data, ReplayGainInfo *replay_gain_info) +{ + unsigned i, pcm_length; + enum decoder_command cmd; + + mad_synth_frame(&data->synth, &data->frame); + + if (!data->found_first_frame) { + unsigned int samples_per_frame = data->synth.pcm.length; + data->drop_start_frames = data->drop_start_samples / samples_per_frame; + data->drop_end_frames = data->drop_end_samples / samples_per_frame; + data->drop_start_samples = data->drop_start_samples % samples_per_frame; + data->drop_end_samples = data->drop_end_samples % samples_per_frame; + data->found_first_frame = true; + } + + if (data->drop_start_frames > 0) { + data->drop_start_frames--; + return DECODE_COMMAND_NONE; + } else if ((data->drop_end_frames > 0) && + (data->current_frame == (data->max_frames + 1 - data->drop_end_frames))) { + /* stop decoding, effectively dropping all remaining + frames */ + return DECODE_COMMAND_STOP; + } + + if (data->input_stream->meta_title) { + struct tag *tag = tag_new(); + if (data->input_stream->meta_name) { + tag_add_item(tag, TAG_ITEM_NAME, + data->input_stream->meta_name); + } + tag_add_item(tag, TAG_ITEM_TITLE, + data->input_stream->meta_title); + free(data->input_stream->meta_title); + data->input_stream->meta_title = NULL; + tag_free(tag); + } + + if (!data->decoded_first_frame) { + i = data->drop_start_samples; + data->decoded_first_frame = true; + } else + i = 0; + + pcm_length = data->synth.pcm.length; + if (data->drop_end_samples && + (data->current_frame == data->max_frames - data->drop_end_frames)) { + if (data->drop_end_samples >= pcm_length) + pcm_length = 0; + else + pcm_length -= data->drop_end_samples; + } + + cmd = mp3_send_pcm(data, i, pcm_length, replay_gain_info); + if (cmd == DECODE_COMMAND_STOP) + return cmd; + + if (data->drop_end_samples && + (data->current_frame == data->max_frames - data->drop_end_frames)) + /* stop decoding, effectively dropping + * all remaining samples */ + return DECODE_COMMAND_STOP; + + return DECODE_COMMAND_NONE; +} + static enum mp3_action mp3_read(struct mp3_data *data, ReplayGainInfo **replay_gain_info_r) { struct decoder *decoder = data->decoder; - unsigned int pcm_length; - unsigned int i; int ret; int skip; enum decoder_command cmd; @@ -936,67 +1005,12 @@ mp3_read(struct mp3_data *data, ReplayGainInfo **replay_gain_info_r) } break; case MUTEFRAME_NONE: - mad_synth_frame(&data->synth, &data->frame); - - if (!data->found_first_frame) { - unsigned int samples_per_frame = (data->synth).pcm.length; - data->drop_start_frames = data->drop_start_samples / samples_per_frame; - data->drop_end_frames = data->drop_end_samples / samples_per_frame; - data->drop_start_samples = data->drop_start_samples % samples_per_frame; - data->drop_end_samples = data->drop_end_samples % samples_per_frame; - data->found_first_frame = true; - } - - if (data->drop_start_frames > 0) { - data->drop_start_frames--; - break; - } else if ((data->drop_end_frames > 0) && - (data->current_frame == (data->max_frames + 1 - data->drop_end_frames))) { - /* stop decoding, effectively dropping all remaining - * frames */ - return DECODE_BREAK; - } - - if (data->input_stream->meta_title) { - struct tag *tag = tag_new(); - if (data->input_stream->meta_name) { - tag_add_item(tag, TAG_ITEM_NAME, - data->input_stream->meta_name); - } - tag_add_item(tag, TAG_ITEM_TITLE, - data->input_stream->meta_title); - free(data->input_stream->meta_title); - data->input_stream->meta_title = NULL; - tag_free(tag); - } - - if (!data->decoded_first_frame) { - i = data->drop_start_samples; - data->decoded_first_frame = true; - } else - i = 0; - - pcm_length = data->synth.pcm.length; - if (data->drop_end_samples && - (data->current_frame == data->max_frames - data->drop_end_frames)) { - if (data->drop_end_samples >= pcm_length) - pcm_length = 0; - else - pcm_length -= data->drop_end_samples; - } - - cmd = mp3_send_pcm(data, i, pcm_length, - replay_gain_info_r != NULL - ? *replay_gain_info_r : NULL); + cmd = mp3_synth_and_send(data, + replay_gain_info_r != NULL + ? *replay_gain_info_r : NULL); if (cmd == DECODE_COMMAND_STOP) return DECODE_BREAK; - if (data->drop_end_samples && - (data->current_frame == data->max_frames - data->drop_end_frames)) - /* stop decoding, effectively dropping - * all remaining samples */ - return DECODE_BREAK; - if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK) { unsigned long j; |