| /** |
| * \file include/output.h |
| * \brief Application interface library for the ALSA driver |
| * \author Jaroslav Kysela <perex@perex.cz> |
| * \author Abramo Bagnara <abramo@alsa-project.org> |
| * \author Takashi Iwai <tiwai@suse.de> |
| * \date 1998-2001 |
| * |
| * Application interface library for the ALSA driver |
| */ |
| /* |
| * This library is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Lesser General Public License as |
| * published by the Free Software Foundation; either version 2.1 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #ifndef __ALSA_OUTPUT_H |
| #define __ALSA_OUTPUT_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * \defgroup Output Output Interface |
| * |
| * The output functions present an interface similar to the stdio functions |
| * on top of different underlying output destinations. |
| * |
| * Many PCM debugging functions (\c snd_pcm_xxx_dump_xxx) use such an output |
| * handle to be able to write not only to the screen but also to other |
| * destinations, e.g. to files or to memory buffers. |
| * |
| * \{ |
| */ |
| |
| /** |
| * \brief Internal structure for an output object. |
| * |
| * The ALSA library uses a pointer to this structure as a handle to an |
| * output object. Applications don't access its contents directly. |
| */ |
| typedef struct _snd_output snd_output_t; |
| |
| /** Output type. */ |
| typedef enum _snd_output_type { |
| /** Output to a stdio stream. */ |
| SND_OUTPUT_STDIO, |
| /** Output to a memory buffer. */ |
| SND_OUTPUT_BUFFER |
| } snd_output_type_t; |
| |
| int snd_output_stdio_open(snd_output_t **outputp, const char *file, const char *mode); |
| int snd_output_stdio_attach(snd_output_t **outputp, FILE *fp, int _close); |
| int snd_output_buffer_open(snd_output_t **outputp); |
| size_t snd_output_buffer_string(snd_output_t *output, char **buf); |
| int snd_output_close(snd_output_t *output); |
| int snd_output_printf(snd_output_t *output, const char *format, ...) |
| #ifndef DOC_HIDDEN |
| __attribute__ ((format (printf, 2, 3))) |
| #endif |
| ; |
| int snd_output_vprintf(snd_output_t *output, const char *format, va_list args); |
| int snd_output_puts(snd_output_t *output, const char *str); |
| int snd_output_putc(snd_output_t *output, int c); |
| int snd_output_flush(snd_output_t *output); |
| |
| /** \} */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __ALSA_OUTPUT_H */ |
| |
