decoder_api: pass "seekable" flag to decoder_initialized()

Don't pass the "seekable" flag with every decoder_data() invocation.
Since that flag won't change within the file, it is enough to pass it
to decoder_initialized() once per file.

src/decoder/_flac_common.c

@@ -300,7 +300,7 @@ flac_common_write(FlacData *data, const FLAC__Frame * frame,
 			     c_samp, c_samp + num_samples);
 
 		cmd = decoder_data(data->decoder, data->inStream,
-				   1, data->chunk,
+				   data->chunk,
 				   num_samples * bytes_per_channel,
 				   data->time, data->bitRate,
 				   data->replayGainInfo);

src/decoder/aac_plugin.c

@@ -391,7 +391,8 @@ aac_stream_decode(struct decoder *mpd_decoder, struct input_stream *inStream)
 		if (!initialized) {
 			audio_format.channels = frameInfo.channels;
 			audio_format.sample_rate = sample_rate;
-			decoder_initialized(mpd_decoder, &audio_format, totalTime);
+			decoder_initialized(mpd_decoder, &audio_format,
+					    false, totalTime);
 			initialized = true;
 		}
 
@@ -410,7 +411,7 @@ aac_stream_decode(struct decoder *mpd_decoder, struct input_stream *inStream)
 
 		sampleBufferLen = sampleCount * 2;
 
-		decoder_data(mpd_decoder, NULL, 0, sampleBuffer,
+		decoder_data(mpd_decoder, NULL, sampleBuffer,
 			     sampleBufferLen, file_time,
 			     bitRate, NULL);
 		if (decoder_get_command(mpd_decoder) == DECODE_COMMAND_SEEK) {
@@ -527,7 +528,7 @@ aac_decode(struct decoder *mpd_decoder, const char *path)
 			audio_format.channels = frameInfo.channels;
 			audio_format.sample_rate = sample_rate;
 			decoder_initialized(mpd_decoder, &audio_format,
-					    totalTime);
+					    false, totalTime);
 			initialized = true;
 		}
 
@@ -546,7 +547,7 @@ aac_decode(struct decoder *mpd_decoder, const char *path)
 
 		sampleBufferLen = sampleCount * 2;
 
-		decoder_data(mpd_decoder, NULL, 0, sampleBuffer,
+		decoder_data(mpd_decoder, NULL, sampleBuffer,
 			     sampleBufferLen, file_time,
 			     bitRate, NULL);
 		if (decoder_get_command(mpd_decoder) == DECODE_COMMAND_SEEK) {

src/decoder/audiofile_plugin.c

@@ -89,7 +89,7 @@ audiofile_decode(struct decoder *decoder, const char *path)
 
 	fs = (int)afGetVirtualFrameSize(af_fp, AF_DEFAULT_TRACK, 1);
 
-	decoder_initialized(decoder, &audio_format, total_time);
+	decoder_initialized(decoder, &audio_format, true, total_time);
 
 	do {
 		if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK) {
@@ -105,7 +105,7 @@ audiofile_decode(struct decoder *decoder, const char *path)
 			break;
 
 		current += ret;
-		decoder_data(decoder, NULL, 1,
+		decoder_data(decoder, NULL,
 			     chunk, ret * fs,
 			     (float)current / (float)audio_format.sample_rate,
 			     bitRate, NULL);

src/decoder/ffmpeg_plugin.c

@@ -239,7 +239,7 @@ ffmpeg_send_packet(struct decoder *decoder, struct input_stream *is,
 
 	assert(audio_size >= 0);
 
-	return decoder_data(decoder, is, is->seekable,
+	return decoder_data(decoder, is,
 			    audio_buf, audio_size,
 			    position,
 			    codec_context->bit_rate / 1000, NULL);
@@ -271,7 +271,8 @@ ffmpeg_decode_internal(BasePtrs *base)
 		total_time = pFormatCtx->duration / AV_TIME_BASE;
 	}
 
-	decoder_initialized(decoder, &audio_format, total_time);
+	decoder_initialized(decoder, &audio_format,
+			    base->input->seekable, total_time);
 
 	do {
 		if (av_read_frame(pFormatCtx, &packet) < 0)

src/decoder/flac_plugin.c

@@ -341,7 +341,8 @@ flac_decode_internal(struct decoder * decoder, struct input_stream *inStream,
 		}
 	}
 
-	decoder_initialized(decoder, &data.audio_format, data.total_time);
+	decoder_initialized(decoder, &data.audio_format,
+			    inStream->seekable, data.total_time);
 
 	while (true) {
 		if (!flac_process_single(flacDec))

src/decoder/mod_plugin.c

@@ -197,7 +197,7 @@ mod_decode(struct decoder *decoder, const char *path)
 	    1.0 / ((audio_format.bits * audio_format.channels / 8.0) *
 		   (float)audio_format.sample_rate);
 
-	decoder_initialized(decoder, &audio_format, 0);
+	decoder_initialized(decoder, &audio_format, false, 0);
 
 	while (true) {
 		if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK) {
@@ -212,7 +212,7 @@ mod_decode(struct decoder *decoder, const char *path)
 
 		ret = VC_WriteBytes(data->audio_buffer, MIKMOD_FRAME_SIZE);
 		total_time += ret * secPerByte;
-		decoder_data(decoder, NULL, 0,
+		decoder_data(decoder, NULL,
 			     (char *)data->audio_buffer, ret,
 			     total_time, 0, NULL);
 	}

src/decoder/mp3_plugin.c

@@ -900,7 +900,6 @@ mp3_send_pcm(struct mp3_data *data, unsigned i, unsigned pcm_length,
 		num_samples *= MAD_NCHANNELS(&(data->frame).header);
 
 		cmd = decoder_data(data->decoder, data->input_stream,
-				   data->input_stream->seekable,
 				   data->output_buffer,
 				   sizeof(data->output_buffer[0]) * num_samples,
 				   data->elapsed_time,
@@ -1108,7 +1107,8 @@ mp3_decode(struct decoder *decoder, struct input_stream *input_stream)
 		tag_free(tag);
 	}
 
-	decoder_initialized(decoder, &audio_format, data.total_time);
+	decoder_initialized(decoder, &audio_format,
+			    data.input_stream->seekable, data.total_time);
 
 	while (mp3_read(&data, &replay_gain_info)) ;
 

src/decoder/mp4_plugin.c

@@ -258,7 +258,7 @@ mp4_decode(struct decoder *mpd_decoder, struct input_stream *inStream)
 			audio_format.sample_rate = scale;
 			audio_format.channels = frameInfo.channels;
 			decoder_initialized(mpd_decoder, &audio_format,
-					    total_time);
+					    inStream->seekable, total_time);
 			initialized = true;
 		}
 
@@ -280,7 +280,7 @@ mp4_decode(struct decoder *mpd_decoder, struct input_stream *inStream)
 
 		sampleBuffer += offset * channels * 2;
 
-		decoder_data(mpd_decoder, inStream, 1, sampleBuffer,
+		decoder_data(mpd_decoder, inStream, sampleBuffer,
 			     sampleBufferLen, file_time,
 			     bitRate, NULL);
 		if (decoder_get_command(mpd_decoder) == DECODE_COMMAND_STOP)

src/decoder/mpc_plugin.c

@@ -163,6 +163,7 @@ mpc_decode(struct decoder *mpd_decoder, struct input_stream *inStream)
 	replayGainInfo->trackPeak = info.peak_title / 32767.0;
 
 	decoder_initialized(mpd_decoder, &audio_format,
+			    inStream->seekable,
 			    mpc_streaminfo_get_length(&info));
 
 	while (!eof) {
@@ -204,7 +205,6 @@ mpc_decode(struct decoder *mpd_decoder, struct input_stream *inStream)
 				    audio_format.sample_rate / 1152 / 1000;
 
 				decoder_data(mpd_decoder, inStream,
-					     inStream->seekable,
 					     chunk, chunkpos,
 					     total_time,
 					     bitRate, replayGainInfo);
@@ -226,7 +226,7 @@ mpc_decode(struct decoder *mpd_decoder, struct input_stream *inStream)
 		bitRate =
 		    vbrUpdateBits * audio_format.sample_rate / 1152 / 1000;
 
-		decoder_data(mpd_decoder, NULL, inStream->seekable,
+		decoder_data(mpd_decoder, NULL,
 			     chunk, chunkpos, total_time, bitRate,
 			     replayGainInfo);
 	}

src/decoder/oggflac_plugin.c

@@ -303,7 +303,8 @@ oggflac_decode(struct decoder * mpd_decoder, struct input_stream *inStream)
 		goto fail;
 	}
 
-	decoder_initialized(mpd_decoder, &data.audio_format, data.total_time);
+	decoder_initialized(mpd_decoder, &data.audio_format,
+			    inStream->seekable, data.total_time);
 
 	while (true) {
 		OggFLAC__seekable_stream_decoder_process_single(decoder);

src/decoder/oggvorbis_plugin.c

@@ -279,6 +279,7 @@ oggvorbis_decode(struct decoder *decoder, struct input_stream *inStream)
 				if (total_time < 0)
 					total_time = 0;
 				decoder_initialized(decoder, &audio_format,
+						    inStream->seekable,
 						    total_time);
 				initialized = true;
 			}
@@ -304,7 +305,6 @@ oggvorbis_decode(struct decoder *decoder, struct input_stream *inStream)
 				bitRate = test / 1000;
 			}
 			decoder_data(decoder, inStream,
-				     inStream->seekable,
 				     chunk, chunkpos,
 				     ov_pcm_tell(&vf) / audio_format.sample_rate,
 				     bitRate, replayGainInfo);
@@ -316,7 +316,7 @@ oggvorbis_decode(struct decoder *decoder, struct input_stream *inStream)
 
 	if (decoder_get_command(decoder) == DECODE_COMMAND_NONE &&
 	    chunkpos > 0) {
-		decoder_data(decoder, NULL, inStream->seekable,
+		decoder_data(decoder, NULL,
 			     chunk, chunkpos,
 			     ov_time_tell(&vf), bitRate,
 			     replayGainInfo);

src/decoder/wavpack_plugin.c

@@ -164,7 +164,7 @@ static void wavpack_decode(struct decoder * decoder,
 
 	samplesreq = sizeof(chunk) / (4 * audio_format.channels);
 
-	decoder_initialized(decoder, &audio_format,
+	decoder_initialized(decoder, &audio_format, false,
 			    (float)allsamples / audio_format.sample_rate);
 
 	position = 0;
@@ -200,7 +200,7 @@ static void wavpack_decode(struct decoder * decoder,
 			format_samples(Bps, chunk,
 			               samplesgot * audio_format.channels);
 
-			decoder_data(decoder, NULL, 0, chunk,
+			decoder_data(decoder, NULL, chunk,
 				     samplesgot * outsamplesize,
 				     file_time, bitrate,
 				     replayGainInfo);

src/decoder_api.c

@@ -32,7 +32,7 @@
 
 void decoder_initialized(struct decoder * decoder,
 			 const struct audio_format *audio_format,
-			 float total_time)
+			 bool seekable, float total_time)
 {
 	assert(dc.state == DECODE_STATE_START);
 	assert(audio_format != NULL);
@@ -42,6 +42,7 @@ void decoder_initialized(struct decoder * decoder,
 	dc.in_audio_format = *audio_format;
 	getOutputAudioFormat(audio_format, &dc.out_audio_format);
 
+	dc.seekable = seekable;
 	dc.totalTime = total_time;
 
 	dc.state = DECODE_STATE_DECODE;
@@ -121,19 +122,11 @@ size_t decoder_read(struct decoder *decoder,
  * one.
  */
 static enum decoder_command
-need_chunks(struct decoder *decoder,
+need_chunks(struct input_stream *inStream)
-	    struct input_stream *inStream, int seekable)
 {
-	if (dc.command == DECODE_COMMAND_STOP)
+	if (dc.command == DECODE_COMMAND_STOP ||
-		return DECODE_COMMAND_STOP;
+	    dc.command == DECODE_COMMAND_SEEK)
-
+		return dc.command;
-	if (dc.command == DECODE_COMMAND_SEEK) {
-		if (seekable) {
-			return DECODE_COMMAND_SEEK;
-		} else {
-			decoder_seek_error(decoder);
-		}
-	}
 
 	if (!inStream ||
 	    input_stream_buffer(inStream) <= 0) {
@@ -146,7 +139,7 @@ need_chunks(struct decoder *decoder,
 
 enum decoder_command
 decoder_data(struct decoder *decoder,
-	     struct input_stream *inStream, int seekable,
+	     struct input_stream *inStream,
 	     void *dataIn, size_t dataInLen,
 	     float data_time, uint16_t bitRate,
 	     ReplayGainInfo * replayGainInfo)
@@ -189,8 +182,7 @@ decoder_data(struct decoder *decoder,
 		data += nbytes;
 
 		if (datalen > 0) {
-			enum decoder_command cmd =
+			enum decoder_command cmd = need_chunks(inStream);
-				need_chunks(decoder, inStream, seekable);
 			if (cmd != DECODE_COMMAND_NONE)
 				return cmd;
 		}

src/decoder_api.h

@@ -116,7 +116,7 @@ struct decoder;
  */
 void decoder_initialized(struct decoder * decoder,
 			 const struct audio_format *audio_format,
-			 float total_time);
+			 bool seekable, float total_time);
 
 const char *decoder_get_url(struct decoder * decoder, char * buffer);
 
@@ -151,7 +151,7 @@ size_t decoder_read(struct decoder *decoder,
  */
 enum decoder_command
 decoder_data(struct decoder *decoder,
-	     struct input_stream *inStream, int seekable,
+	     struct input_stream *inStream,
 	     void *data, size_t datalen, float data_time, uint16_t bitRate,
 	     ReplayGainInfo * replayGainInfo);
 

src/decoder_thread.c

@@ -76,9 +76,6 @@ static void decodeStart(void)
 		}
 	}
 
-	/* for http streams, seekable is determined in input_stream_buffer */
-	dc.seekable = inStream.seekable;
-
 	if (dc.command == DECODE_COMMAND_STOP) {
 		input_stream_close(&inStream);
 		return;