X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/24924e4869890878be88a1c6c324d2fe9ee8f087..d52698283cc0fe225a0d87c68e38969c35d1c9b2:/examples/am7xxx-play.c diff --git a/examples/am7xxx-play.c b/examples/am7xxx-play.c index f7e069a..2fc8763 100644 --- a/examples/am7xxx-play.c +++ b/examples/am7xxx-play.c @@ -17,6 +17,12 @@ * along with this program. If not, see . */ +/** + * @example examples/am7xxx-play.c + * am7xxx-play uses libavdevice, libavformat, libavcodec and libswscale to + * decode the input, encode it to jpeg and display it with libam7xxx. + */ + #include #include #include @@ -84,7 +90,7 @@ static int video_input_init(struct video_input_ctx *input_ctx, /* get information on the input stream (e.g. format, bitrate, framerate) */ ret = avformat_find_stream_info(input_format_ctx, NULL); if (ret < 0) { - fprintf(stderr, "cannot get information on the stream"); + fprintf(stderr, "cannot get information on the stream\n"); goto cleanup; } @@ -115,7 +121,7 @@ static int video_input_init(struct video_input_ctx *input_ctx, /* find the decoder for the video stream */ input_codec = avcodec_find_decoder(input_codec_ctx->codec_id); if (input_codec == NULL) { - fprintf(stderr, "input_codec is NULL!"); + fprintf(stderr, "input_codec is NULL!\n"); ret = -ENOTSUP; goto cleanup; } @@ -163,7 +169,7 @@ static int video_output_init(struct video_output_ctx *output_ctx, int ret; if (input_ctx == NULL) { - fprintf(stderr, "input_ctx must not be NULL!"); + fprintf(stderr, "input_ctx must not be NULL!\n"); ret = -EINVAL; goto out; } @@ -171,7 +177,7 @@ static int video_output_init(struct video_output_ctx *output_ctx, /* create the encoder context */ output_codec_ctx = avcodec_alloc_context3(NULL); if (output_codec_ctx == NULL) { - fprintf(stderr, "cannot allocate output codec context!"); + fprintf(stderr, "cannot allocate output codec context!\n"); ret = -ENOMEM; goto out; } @@ -290,7 +296,8 @@ static int am7xxx_play(const char *input_format_string, /* allocate an input frame */ picture_raw = avcodec_alloc_frame(); if (picture_raw == NULL) { - fprintf(stderr, "cannot allocate the raw picture frame!"); + fprintf(stderr, "cannot allocate the raw picture frame!\n"); + ret = -ENOMEM; goto cleanup_output; } @@ -298,6 +305,7 @@ static int am7xxx_play(const char *input_format_string, picture_scaled = avcodec_alloc_frame(); if (picture_scaled == NULL) { fprintf(stderr, "cannot allocate the scaled picture!\n"); + ret = -ENOMEM; goto cleanup_picture_raw; } @@ -308,6 +316,7 @@ static int am7xxx_play(const char *input_format_string, out_buf = av_malloc(out_buf_size * sizeof(uint8_t)); if (out_buf == NULL) { fprintf(stderr, "cannot allocate output data buffer!\n"); + ret = -ENOMEM; goto cleanup_picture_scaled; } @@ -329,6 +338,7 @@ static int am7xxx_play(const char *input_format_string, NULL, NULL, NULL); if (sw_scale_ctx == NULL) { fprintf(stderr, "cannot set up the rescaling context!\n"); + ret = -EINVAL; goto cleanup_out_buf; } @@ -557,13 +567,16 @@ static void usage(char *name) printf("\t-o \t\ta comma separated list of input format options\n"); printf("\t\t\t\tEXAMPLE:\n"); printf("\t\t\t\t\t-o draw_mouse=1,framerate=100,video_size=800x480\n"); - printf("\t-s \t\tthe rescaling method (see swscale.h)\n"); + printf("\t-s \tthe rescaling method (see swscale.h)\n"); printf("\t-u \t\t\tupscale the image if smaller than the display dimensions\n"); printf("\t-F \t\tthe image format to use (default is JPEG)\n"); printf("\t\t\t\tSUPPORTED FORMATS:\n"); printf("\t\t\t\t\t1 - JPEG\n"); printf("\t\t\t\t\t2 - NV12\n"); - printf("\t-q \t\t\tquality of jpeg sent to the device, between 1 and 100\n"); + printf("\t-q \t\tquality of jpeg sent to the device, between 1 and 100\n"); + printf("\t-l \t\tthe verbosity level of libam7xxx output (0-5)\n"); + printf("\t-p \tpower level of device, between %x (off) and %x (maximum)\n", AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO); + printf("\t\t\t\tWARNING: Level 2 and greater require the master AND\n\t\t\t\t\t the slave connector to be plugged in.\n"); printf("\t-h \t\t\tthis help message\n"); printf("\n\nEXAMPLES OF USE:\n"); printf("\t%s -f x11grab -i :0.0 -o video_size=800x480\n", name); @@ -585,11 +598,13 @@ int main(int argc, char *argv[]) unsigned int rescale_method = SWS_BICUBIC; unsigned int upscale = 0; unsigned int quality = 95; + int log_level = AM7XXX_LOG_INFO; + am7xxx_power_mode power_mode = AM7XXX_POWER_LOW; int format = AM7XXX_IMAGE_FORMAT_JPEG; am7xxx_context *ctx; am7xxx_device *dev; - while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:h")) != -1) { + while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:l:p:h")) != -1) { switch (opt) { case 'f': input_format_string = strdup(optarg); @@ -617,7 +632,7 @@ int main(int argc, char *argv[]) break; case 's': rescale_method = atoi(optarg); - switch(format) { + switch(rescale_method) { case SWS_FAST_BILINEAR: case SWS_BILINEAR: case SWS_BICUBIC: @@ -633,7 +648,7 @@ int main(int argc, char *argv[]) default: fprintf(stderr, "Unsupported rescale method\n"); ret = -EINVAL; - goto out;; + goto out; } break; case 'u': @@ -651,7 +666,7 @@ int main(int argc, char *argv[]) default: fprintf(stderr, "Unsupported format\n"); ret = -EINVAL; - goto out;; + goto out; } break; case 'q': @@ -659,7 +674,30 @@ int main(int argc, char *argv[]) if (quality < 1 || quality > 100) { fprintf(stderr, "Invalid quality value, must be between 1 and 100\n"); ret = -EINVAL; - goto out;; + goto out; + } + break; + case 'l': + log_level = atoi(optarg); + if (log_level < AM7XXX_LOG_FATAL || log_level > AM7XXX_LOG_TRACE) { + fprintf(stderr, "Unsupported log level, falling back to AM7XXX_LOG_ERROR\n"); + log_level = AM7XXX_LOG_ERROR; + } + break; + case 'p': + power_mode = atoi(optarg); + switch(power_mode) { + case AM7XXX_POWER_OFF: + case AM7XXX_POWER_LOW: + case AM7XXX_POWER_MIDDLE: + case AM7XXX_POWER_HIGH: + case AM7XXX_POWER_TURBO: + fprintf(stdout, "Power mode: %x\n", power_mode); + break; + default: + fprintf(stderr, "Invalid power mode value, must be between %x and %x\n", AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO); + ret = -EINVAL; + goto out; } break; case 'h': @@ -713,13 +751,15 @@ int main(int argc, char *argv[]) goto out; } + am7xxx_set_log_level(ctx, log_level); + ret = am7xxx_open_device(ctx, &dev, 0); if (ret < 0) { perror("am7xxx_open_device"); goto cleanup; } - ret = am7xxx_set_power_mode(dev, AM7XXX_POWER_LOW); + ret = am7xxx_set_power_mode(dev, power_mode); if (ret < 0) { perror("am7xxx_set_power_mode"); goto cleanup;